List of Hamtaro characters

Ham-Ham Gang

 * Hamtaro (ハム太郎, Hamutarō)
 * Voiced by: Kurumi Mamiya (Japanese), Chiara Zanni (English; Ocean), TBA (English; Sensation)
 * Owned by Laura, Hamtaro is a courageous Ham-Ham who's always ready to help out his friends and his owner Laura. However, he cannot stand being ignored by Laura. He is clueless about many things being that he is of an innocent nature, especially love (much to Bijou and Sparkle's dismay). Hamtaro makes the most of his life as a golden hamster (8.6cm) and lives each day in happiness hoping to make more friends and have fun. Hamtaro usually ends his sentences with "noda" (のだ) or "nanoda" (なのだ), a phrase often used by playful characters in the Japanese version. This is omitted in the English version. In both Japanese and English versions, he says such things as "Hamha!", "Heke", "Packa-packa" ("kaji-kaji"), and "kushi-kushi".


 * Bijou (リボンちゃん, Ribon-chan)
 * Voiced by: Kazusa Murai (Japanese), Chantal Strand (English; Ocean), Mary Elizabeth McGlynn (English; Sensation)
 * Owned by Maria. She is a somewhat unworldly hamster who loves her blue ribbons, but she is not above getting dirty when she needs to help her friends, and has been known to be generous and helpful. She used to live in France before moving to where she is now, but she feels attached to Japan and has even refused to go back to France. In the Japanese version, she speaks normal Japanese and adds the words "dechuwa" (でちゅわ) (most likely a hamster version of "desu wa") at the end of her sentences, while the English version of Bijou has a French accent. The name "Bijou," is French for "small, exquisitely wrought trinket", or it can also mean "jewel". She has a huge crush on Hamtaro (this is proven in the first episode, when she winked at him after their dancing performance).


 * Oxnard (こうしくん, Koushi-kun)
 * Voiced by: Rikako Aikawa (Japanese), Saffron Henderson (English; Ocean), Paul St. Peter (English; Sensation)
 * Owned by Kana. Oxnard is Hamtaro's best friend in the series and the first Ham-Ham he meets. Oxnard is a bit clumsy at times and has a love for delicious food, especially sunflower seeds (of which he always carries one around). He breaks down in tears when he loses the sunflower seed he carries around. He was originally an easily frightened Ham-Ham, but he has become braver and more dependable in recent episodes. Oxnard has a crush on his close childhood friend Pepper. His Japanese name translates to "calf", which is probably referring to his spotted cow-like fur and his large appetite.


 * Boss (タイショーくん, Taishō-kun)
 * Voiced by: Kentarō Itō (Japanese), Ted Cole (English; Ocean), Bob Papenbrook (English; Sensation)
 * A wild field hamster who wears a helmet and carries a shovel. The self-proclaimed leader of the Ham-Hams, Boss has a huge crush on Bijou. He often tries to look like he knows everything, only to have it backfire in his face. He has a bit of a temper, but he is very dependable, courageous, and nice, even shy at times (especially around Bijou). Because he is a field hamster, he is more familiar with nature and is more independent compared to the other Ham-Hams. He has even developed a field hamster sense that instinctively tells him what kind of weather is approaching. However, he cannot deal with the sea as he is prone to sea sickness. Near the end of Hamtaro: Ham-Ham Heartbreak, it is hinted that he has a small crush on Harmony. Later in the series, Boss develops a crush on other girl-hams, such as Gelato and Oshare.


 * Pashmina (マフラーちゃん, Mafurā-chan)
 * Voiced by: Rei Sakuma (Japanese), Tabitha St. Germain (English; Ocean), Mona Marshall (English; Sensation)
 * Owned by June. Considered to be a very maternal Ham-Ham, as she takes care of Penelope. She loves the color pink and always wears her pink scarf. Dexter and Howdy often fight for her affection, but she does not seem to notice (sometimes acting like a mediator for them). She feels that she is too young for a relationship anyway. Her Japanese name translates to "scarf", while her English name is based on the word pashmina.


 * Penelope (ちび丸ちゃん, Chibimaru-chan)
 * Voiced by: Kaori Matoi (Japanese), Jocelyne Loewen (English; Ocean), Mari Devon (English; Sensation)
 * Owned by Kylie. Considered the youngest of all the Ham-Hams, Penelope is usually never seen without the cover of her yellow blanket (though a few seconds in the opening theme show her blanket coming off, revealing her brown and white fur). Although she is friendly to everyone, she feels particularly attached to Pashmina. Being innocent and naive, due to her age, she gets into trouble more often than most of the other Ham-Hams. In season two, she has shown some cross-species affection for Herbert the Pig, a boy by the name of Ethan (Kylie's younger cousin), and a rabbit at Ethan's school. Unlike the other Ham-Hams, and perhaps because of her young age, Penelope can't say anything more than "Ukyu" (うきゅ) in the Japanese version, and "Ookwee" or "Ookyoo" in the English version.


 * Maxwell (のっぽくん, Noppo-kun)
 * Voiced by: Takako Honda (Japanese), Brad Swaile (English; Ocean), Brad MacDonald (English; Sensation)
 * Owned by the eldest son of a bookstore owner (though it seems that the bookstore owner's daughter is the one who cares for him). He always carries a book with him, and is often turned to for information. He seems to know a lot about science and literature due to his love of reading. He is a little taller than the other Ham-Hams, partially due to his tall ears. He has a crush on Sandy, though it is never initiated until Hamtaro tells him about Sandy's feelings.


 * Sandy (トラハムちゃん, Torahamu-chan)
 * Voiced by: Haruna Ikezawa (Japanese), Brittney Wilson (English; Ocean), TBA (English; Sensation)
 * Owned by Hillary. A sporty young girl Ham-Ham who carries a ribbon, and is the twin sister of Stan. Her interest in rhythmic gymnastics have been influenced by Hillary, who is a gold medal gymnast. She has a crush on Maxwell. While in the English version it might seem that the two have confessed their affections, a Japanese episode confirms that they are not quite romantically involved yet. In the English version, she has a valley girl accent. She is also shown to be good friends with Hamtaro, as she confided in him her crush on Maxwell.


 * Stan (トラハムくん, Torahamu-kun)
 * Voiced by: Kōki Miyata (Japanese), Michael Coleman (English; Ocean), Steve Blum (English; Sensation)
 * Owned by Noel. Sandy's twin brother, who is often caught flirting with the other girl hamsters. As a result, he can be an annoyance to the other boy Ham-Hams, especially Boss, Howdy, and Dexter. Initially, Sandy and Stan were separated, after Noel (who had a crush on Hillary) offered to take care of one of her hamsters. He is often seen shaking his maracas or riding his skateboard. Stan seems to have a crush on Flora, the nurse hamster pet of the veterinarian, Dr. Lion.


 * Howdy (まいどくん, Maido-kun)
 * Voiced by: Yū Sugimoto (Japanese), Paul Dobson (English; Ocean), Jamieson Price (English; Sensation)
 * Owned by Goldie. A Ham-Ham notorious for telling bad jokes, especially at inconvenient times. He speaks with a kansai dialect in the Japanese version and with an American Southern accent in the English version. He and Dexter are long-time friends but often fight with each other over the affections of Pashmina, whom they both have a crush on.


 * Snoozer (ねてるくん, Neteru-kun)
 * Voiced by: Yū Sugimoto (Japanese), Cathy Weseluck (English; Ocean), Brianne Siddall (English; Sensation)
 * A mysterious hamster that Boss found in his hideaway (which would soon become the Clubhouse). It is unknown where he came from. He is always sleeping, but often utters some helpful advice when the Ham-Hams are in need of it. In the English version, he talks with a lisp. His Japanese name is based on the word "neru" (寝る to sleep), while his English name is based on the word "snooze".


 * Dexter (めがねくん, Megane-kun)
 * Voiced by: Chihiro Suzuki (Japanese), Samuel Vincent (English; Ocean), Michael Reisz (English; Sensation)
 * Owned by Curtis. A refined hamster, who is quite smart. He has a crush on Pashmina, but often battles with his long-time friend, Howdy, for her affection. His Japanese name is a pun: Megane means "glasses" in reference to the tan markings of fur around his eyes that makes him look like he's wearing glasses. Coincidentally, his owner is an optometrist.


 * Cappy (かぶるくん, Kaburu-kun)
 * Voiced by: Ai Uchikawa (Japanese), Ellen Kennedy (English; Ocean), Mari Devon (English; Sensation)
 * Owned by Kip and Sue. One of the younger Ham-Hams, Cappy loves hats. The two hats he most commonly wears are his green swimming cap, and the giant red saucepan that he usually hides under. While he loves his home, he does not like being spoiled, and looks up to Boss due to Boss's independence as a field hamster. He has developed some sort of a rivalry with Stucky, especially when it comes to hide and seek. His Japanese name is based on the word "kaburu" (被る to wear/put something on one's head), while his English name is based on the word "cap".


 * Panda (パンダくん, Panda-kun)
 * Voiced by: Yūko Saitō (Japanese), Jillian Michaels (English; Ocean), Joshua Seth (English; Sensation)
 * Owned by Mimi. A Ham-Ham whose fur matches his name, he is the sweet and gentle-natured builder/carpenter of the Ham-Hams who built and repaired many things throughout the duration of the anime as well as in the game. He also designed the Ham-Ham Fun Park. Mimi's parents own and operate a wood working shop in their house, meaning Panda always has access to construction supplies.


 * Jingle (トンガリくん, Tongari-kun)
 * Voiced by: Yū Asakawa (Japanese), Terry Klassen (English; Ocean), Philece Sampler (English; Sensation)
 * A field hamster. Appears occasionally throughout the series (usually when someone loses something). He speaks in rhymes, which often confuse the other Ham-Hams, but they soon figure out what he means. He is clueless about many things, but tends to give wise advice. Always seen carrying his guitar. In 'Hamtaro, Please Come Home' and all other appearances afterwards, he is seen with Herbert the Pig. He has a habit of forgetting names. Whenever he appears, he usually mispronounces someone's name (Hamtaro’s most of the time). Whenever he is corrected, he usually replies "You changed your name again?"


 * Lapis (ラピスちゃん, Rapisu-chan)
 * Voiced by: Saeko Chiba (Japanese), Michelle Ruff (English)
 * Owned by newcomer Maggie O'Hara. She and her younger sister, Lazuli live in Jewelry House next to Maki's house. She likes jewels and sparkling objects such as diamonds. She seems to have a crush on Hamtaro.


 * Lazuli (ラズリーちゃん, Razuri-chan)
 * Voiced by: Akane Ōmai (Japanese), Peggy O'Neal (English)
 * Owned by newcomer Maggie O'Hara along with her older sister, Lapis. She likes sweets and candy as well as using various potions to create magical seeds that turns into either animals or flying clouds. She seems to have a crush on Snoozer as in Season 3 and 4, she is seen with him fairly often.

Hamuhaa no Ki no Jūnin (Hamha Tree Inhabitants)

 * Sky Ham (そらハムくん, Sorahamu-kun)
 * Voiced by: Hikaru Tokita (Japanese), Daran Norris (English)
 * He appeared in the Japanese Hamtaro game, Nazo Nazo Q. His dream is to cross the sky, hence the name Sky Ham. He once had a crush on Pashmina.


 * Okini (オーキニーちゃん, Ōkinii-chan)
 * Voiced by: Sayaka Maeda (Japanese), Bridget Hoffman (English)
 * She is greedy and once tried to make money off of Sparkle. It is rumored that she has a crush on Broski.


 * Mystery (ミステリーちゃん, Misuteri-chan)
 * Voiced by: Hisayo Mochizuki (Japanese), Wendee Lee (English)
 * She predicts hamsters' futures with her magical crystal ball, usually chanting "I see it, atarinchu".


 * Magical (マジカルくん, Majikaru-kun)
 * Voiced by: Miyako Itō (Japanese), Steve Kramer (English)
 * He is Mystery's little brother and assistant. He usually goes, "pitarin, pitarin, atarinchu" in addition to Mystery's "atarinchu".

Otome Gang

 * Otome (おとめちゃん, Otome-chan)
 * Voiced by: Tōko Aoyama (Japanese), Mary Elizabeth McGlynn (English)


 * Lion (ライオンくん, Raion-kun)
 * Voiced by: Masashi Ogawa and Tetsuharu Ōta (Japanese), R. Martin Klein (English)


 * Bear (くまくん, Kuma-kun)
 * Voiced by: Hiroko Oyamada (Japanese), Paul St. Peter (English)

Djungarians

 * Leo (ライオンさん, Raion-san)
 * Voiced by: Miharu Iijima (Japanese), Michael Coleman (English; Ocean), Crispin Freeman (English; Sensation)
 * Member of Team Djungle, who lives at Djunglebell Island. He wears a lion costume.


 * Stripes (ゼブラさん, Zebura-san)
 * Voiced by: Makoto Tsumura (Japanese), Sharon Alexander (English; Ocean), Brian Donovan (English; Sensation)
 * Member of Team Djungle, who lives at Djunglebell Island. He wears a zebra costume.


 * Bunny (ウサギさん, Usagi-san)
 * Voiced by: Kimiko Koyama (Japanese), Annette Ducharme (English; Ocean), Brianne Siddall (English; Sensation)
 * Member of Team Djungle. As her name implies, she wears a rabbit costume. She always says "hop" in every sentence and lives at Djunglebell Island. Appears in Hamtaro: Ham-Ham Games.


 * Warts (カエルさん, Kaeru-san)
 * Voiced by: Lee Tockar (English; Ocean), Richard Cansino (English; Sensation)
 * Member of Team Djungle. Primarily wears a frog outfit, but often changes and lives at Djunglebell Island. When wearing a frog costume, he makes the sound of a frog.


 * Cactus Brothers (サボテンブラザース, Saboten Burazāsu)
 * Voiced by: Sayaka Narita, Emiri Katō and Keiko Nemoto (Japanese), Beau Billingslea, Dave Wittenberg and Brian Beacock (English)
 * Fox (キツネさん, Kitsune-san)
 * Voiced by: Daisuke Sakaguchi (Japanese), Micheal Sorich (English)
 * Voiced by: Daisuke Sakaguchi (Japanese), Micheal Sorich (English)


 * Raccoon Dog (タヌキさん, Tanuki-san)
 * Voiced by: Chie Kōjiro (Japanese), Derek Stephen Prince (English)


 * Treasure Box (宝箱くん, Takaraba-kun)
 * Octopus (タコさん, Tako-san)
 * Voiced by: Chigusa Ikeda (Japanese), Crispin Freeman (English)


 * Dolphin (イルカさん, Iruka-san)
 * Voiced by: Hitomi Nabatame (Japanese), Dave Wittenberg (English)


 * Pheasant (キジくん, Kiji-kun)
 * Voiced by: Runa Akiyama (Japanese), Mala Miles (English)

Rainbow Country Hamsters

 * Prince Bo (にじハムくん, Nijihamu-kun)
 * Voiced by: Hiroko Taguchi (Japanese), Rebecca Shoichet (English; Ocean), Michael Sorich (English; Sensation)
 * Prince of Rainbow Country. Appears in Hamtaro: Ham-Ham Games and Hamtaro: Rainbow Rescue.

Rainbow Girls
The Rainbow Girls (レインボーガールズ, Reinbō Gāruzu) are three cheerleaders who serve royalty to Rainbow Country; The Rainbow Girls are Prince Bo's palace fans. They appear in Hamtaro: Ham-Ham Games. They were jealous that the Ham-Hams got to carry the everlasting torch, so they pursued them to steal it. They grow butterfly wings when they fly.
 * Rosy (ビューティー, Byūtī, Beauty)
 * Voiced by: Shōko Kikuchi (Japanese), Alexandra Carter (English; Ocean), TBA (English; Sensation)
 * Rosy's signature color is red, and she is lazy and thinks the Ham-Hams are nice. Sometimes she likes to be tough.


 * Ivy (キューティー, Kyūtī, Cutie)
 * Voiced by: Masumi Asano (Japanese), Kelly Sheridan (English; Ocean), Bridget Hoffman (English; Sensation)
 * Ivy's signature color is green, and she is cute.


 * Daisy (プリティー, Puritī, Pretty)
 * Voiced by: Haruhi Terada (Japanese), Kelly Sheridan (English; Ocean), Mary Elizabeth McGlynn (English; Sensation)
 * Daisy is the leader of the Rainbow Girls and her signature color is yellow.

Other Hamsters

 * Elder Ham (長老ハム, Chōrōhamu)
 * Voiced by: Takkō Ishimori (Japanese), Don Brown (English; Ocean), Paul St. Peter (English; Sensation)
 * A narcoleptic elderly hamster, he is always falling asleep while talking. Despite this, he is a source of wisdom for the Ham-Hams.


 * Auntie Viv (おハムばあさん, Ohamubaa-san)
 * Voiced by: Masako Nozawa (Japanese), Pam Hyatt (English; Ocean), Steve Kramer (English; Sensation)
 * Extremely fit elderly hamster with an attitude. Used to be involved with Elder Ham.


 * Omar (オアシスくん, Oashisu-kun, Oasis-kun)
 * Voiced by: Hiromi Ishikawa (Japanese), Cathy Weseluck (English; Ocean), Mona Marshall (English; Sensation)
 * A hamster from a far-away land who looks exactly like Snoozer. Left his wealthy owner, a king, to travel the world.


 * Sabu (サブさん, Sabu-san)
 * Voiced by: Tomohiro Nishimura (Japanese), Richard Ian Cox (English; Ocean), Derek Stephen Prince (English; Sensation)
 * Hamster with a pigeon named Françoise. He appears in the series from time to time with different roles. Mainly, he's a seed vendor who feeds anyone he sees. At one point, Boss considered him more of a man than he was.


 * Pepper (じゃじゃハムちゃん, Jyajyahamu-chan, Jajahamu)
 * Voiced by: Motoko Kumai (Japanese), Nicole Oliver (English; Ocean), Mary Elizabeth McGlynn (English; Sensation)
 * Pepper is the girlfriend of Oxnard. She is the pet hamster of Kana's cousin, Dylan, who lives in the country. Compared to Oxnard, she is a lot braver and can be very rough. She ends up marrying Oxnard in the final episode.


 * Sparkle (くるりんちゃん, Kururin-chan)
 * Voiced by: Masako Jō (Japanese), Jocelyn Loewen (English; Ocean), Mona Marshall (English; Sensation)
 * Owned by Glitter. Sparkle is a spoiled pop star hamster. She did not like the Ham-Hams at first, but she gradually became very attached to them. In the Japanese episodes, Sparkle began to fall in love with Hamtaro, and has since then been trying to get him to notice her. For this and many other reasons, she sees Bijou and Oshare as rivals.


 * Stucky (ぬけないくん, Nukenai-kun)
 * Voiced by: Fujiko Takimoto (Japanese), Jillian Michaels (English; Ocean), Dave Mallow (English; Sensation)
 * A hamster who is the best hide and seeker like his best friend, Cappy. Stucky is "stuck" in a plastic pipe, so he can only move by running or rolling. His pipe resembles a warp pipe from the Mario series both in shape and color.


 * Robo-Joe (メカージロウ, Mekaa Jirō, Mecha Jirō)
 * Created by Laura's Grandpa, Robo-Joe is a robot hamster whose appearance seems to be based on Hamtaro. Robo-Joe's main function is the ability to learn and mimic what he hears; both human language and Ham-Ham language. In a later Japanese episode, Laura's Grandfather places a slightly modified Robo-Joe in a Battlebots-like tournament.


 * Nin-Ham (ニンハムくん, Ninhamu-kun)
 * Voiced by: Chie Kōjiro (Japanese), Seren Pendleton-Knoll (English; Ocean), Brian Beacock (English; Sensation)
 * A Ninja hamster who comes from IgaIga valley. Being the worst ninja in his home, he left so he could be appreciated by non-ninja Hams.


 * Hannah (ハナちゃん, Hana-chan)
 * Voiced by: Hanako Yamada (Japanese), Caroline Chan (English; Ocean), Kirk Thornton (English; Sensation)
 * Childhood friend of Howdy. A southern belle who develops a short-lived crush on Dexter. She is one of the very few who can stand Howdy's jokes.


 * Chef Ham (コックさん, Kokku-san, Cook-san)
 * Voiced by: Toshihiko Seki (Japanese), Paul Dobson (English; Ocean), Jamieson Price (English; Sensation)
 * A chef hamster with a colorful Italian accent and many children.


 * Flora (ナースちゃん, Naasu-chan, Nurse-chan)
 * Voiced by: Haruhi Terada (Japanese), Peggy O'Neal (English)
 * A nurse hamster who is willing to cure any hamster she sees, and is very concerned about the health of her patients, even animals other than hamsters. Stan has a crush on her.


 * Harmony (エンジェルちゃん, Enjeru-chan, Angel-chan)
 * Voiced by: Yūko Kaida (Japanese), Dorothy Elias-Fahn (English)
 * Hamster in an angel costume who fights with Spat and tries to save love for all hamsters. She was a major character in Hamtaro: Ham-Ham Heartbreak.


 * Spat (デビハムくん, Debihamu-kun, Devi-hamu-kun)
 * Voiced by: Keiko Yamamoto (Japanese), Ziggy Miles (English)
 * Hamster in a devil costume who fights with Harmony and tries to ruin love for all hamsters. He made an appearance in Hamtaro: Ham-Ham Heartbreak (video game) as the main villain. Spat appears from time to time with different evil plots. Just as in Ham-Ham Heartbreak, the Ham-Hams always thwart his plans.


 * Barrette (ポニーテールちゃん, Ponītēru-chan, Ponytail-chan)
 * Voiced by: Chiemi Chiba (Japanese), Brianne Siddall (English)
 * Runs the photo studio in the Ham-Ham Clubhouse with her boyfriend Seamore. Makes an appearance in Hamtaro: Ham-Ham Heartbreak. In the TV series it is rumored that she has a crush on Hamtaro.


 * Ook-Ook (ウキハムくん, Ukihamu-kun)
 * Voiced by: Rie Kugimiya (Japanese), Joey D'Auria (English)
 * A hamster who wears a monkey costume.


 * Buster (たいほくん, Taiho-kun)
 * Voiced by: Wasabi Mizuta (Japanese); Michael McConnohie (English)
 * He is a police/security Ham-Ham, and is usually chasing Ook-Ook.


 * Seamore (カメハムくん, Kamehamu-kun)
 * Voiced by: Yūji Ueda (Japanese); Dave Mallow (English)
 * Hamster with a turtle shell on his back (hence his Japanese name); can swim (unlike most hamsters). He also runs a photo studio in the Ham-Ham Clubhouse with his girlfriend, Barrette.


 * Hambini (or Little Hams) (ちびちゃんず, Chibi-chanzu, Chibi-chans)
 * Young triplet hamsters who are owned by a nice lady whose name is unknown. Flora and the Ham-Hams take care of them sometimes. (Not to be confused with Chef-Ham's hambini).


 * Tomy-T (トマトくん, Tomato-kun)
 * Voiced by: Rie Kugimiya (Japanese), Richard Cansino (English)
 * He is a gardener along with Eggy-P.


 * Eggy-P (ナッスーくん, Nassū-kun)
 * Voiced by: Yayoi Kuroda (Japanese), Philece Sampler (English)
 * He is a gardener along with Tomy-T.


 * Marron (ちびくりちゃん, Chibikuri-chan)
 * Voiced by: Kumiko Higa (Japanese), Mona Marshall (English)
 * A young Ham-Ham who likes chestnuts and is friends with Tomy-T and Eggy-P. She also seems to have a friendship with Penelope.


 * Potato (ポテトくん, Poteto-kun, Potato-kun)
 * Voiced by: Takayuki Yamaguchi (Japanese), Bob Papenbrook (English)
 * It is proven that he has a crush on Shake.


 * Shake (シェイクちゃん, Sheiku-chan, Shake-chan)
 * Voiced by: Noriko Shitaya (Japanese), Mary Elizabeth McGlynn (English)
 * It is proven that she has a crush on Potato.


 * Solara (ひまわりちゃん, Himawari-chan, Sunflower-chan)
 * Voiced by: Yumiko Kobayashi (Japanese), Tifanie Christun (English)


 * Oshare (おしゃれちゃん, Oshare-chan)
 * Voiced by: Ikue Ōtani and Naoko Matsui (Japanese), Mari Devon (English)
 * She, like Bijou, came from France. Boss once had a crush on her, but she developed a crush on Hamtaro. This, of course, gets her in trouble with both Bijou and Sparkle.


 * Radar (みみよりくん, Mimiyori-kun)
 * Voiced by: Romi Park (Japanese), Brad MacDonald (English)
 * News reporter hamster. He is a prince who marries princess Championi.


 * Championi (きのこちゃん, Kinoko-chan)
 * Voiced by: Satomi Arai (Japanese), Joshua Seth (English)
 * She is a princess who marries prince Radar. The name Championi is a play on the Spanish word for mushroom "champiñón."


 * King of the Sunflower Kingdom (ひまわり王国の王様, Himawari Ōkoku no Ōsama)
 * Voiced by: Kenichi Ogata (Japanese), Paul St. Peter (English)


 * Sunflower Princess (ひまわり姫, Himawari-hime)
 * Voiced by: Satsuki Yukino (Japanese), Steve Staley (English)


 * Hanamaru (花丸, Hanamaru)
 * Voiced by: Takuma Suzuki (Japanese), Steve Blum (English)


 * Drizzle (くろハムくん, Kurohamu-kun)
 * Voiced by: Yoshiko Kamei (Japanese), Mala Miles (English)
 * News reporter hamster.


 * Gelato (ジェラードちゃん, Jeraado-chan)
 * Voiced by: Sawa Ishige (Japanese), Brianne Siddall (English)
 * A hamster who belongs to an ice cream vendor. Boss has a crush on her.


 * Broski (サーファーくん, Saafaa-kun, Surfer-kun)
 * Voiced by: Kahoru Sasajima (Japanese), Philece Sampler (English)
 * Surfing hamster. He pretends to be a surfer, but he really can't surf, and this gets him in trouble It is rumored that he has a crush on Shake. Okini once had a crush on him.


 * Ice (アイスくん, Aisu-kun, Ice-kun)
 * Voiced by: Junko Takeuchi (Japanese), Micheal Sorich (English)
 * He is an ice cream vendor along with his sister Lolly.


 * Lolly (キャンディーちゃん, Kyandii-chan, Candy-chan)
 * Voiced by: Yuri Shiratori (Japanese), Michelle Ruff (English)
 * She is an ice cream vendor along with her brother Ice.


 * Mole (or Digger) (もぐるくん, Moguru-kun)
 * Voiced by: Kumiko Watanabe (Japanese), Paul St. Peter (English)
 * He likes to dig all over the world.


 * Nande (なんでくん, Nande-kun)
 * Voiced by: Junko Ueda (Japanese), Steve Staley (English)
 * He is constantly asking "Why?" about everything.


 * Tux (ペンハムくん, Penhamu-kun)
 * Voiced by: Chigusa Ikeda (Japanese), Brad MacDonald (English)


 * Salia (あざらしちゃん, Azarashi-chan)
 * Voiced by: Akiko Takeguchi (Japanese), Tifanie Christun (English)
 * She is Tux's grandmother.

Haruna Family

 * Laura Haruna (春名 ヒロ子, Haruna Hiroko, Hiroko Haruna)
 * Voiced by: Haruna Ikezawa (Japanese), Moneca Stori (English; Ocean), Wendee Lee (English; Sensation)
 * Hamtaro's owner and the main human character. Also known as Roko-chan. Laura cares for Hamtaro very much, just as Hamtaro cares for her. Several episodes involve the Ham-Hams trying to help Laura with whatever problem she is facing. She is best friends with Kana, and has a huge crush on her friend Travis. She is one of the two human characters who can actually talk to the Ham-Hams and is in the 5th grade.


 * Marian Haruna (春名 ヒロミ, Haruna Hiromi, Hiromi Haruna)
 * Voiced by: Rei Sakuma (Japanese), Cathy Weseluck (English; Ocean), Michelle Ruff (English; Sensation)
 * Laura's mother, and Forrest's wife.


 * Forrest Haruna (春名 ユメ太郎, Haruna Yumetarō, Yumetarō Haruna)
 * Voiced by: Hiroshi Isobe (Japanese), Samuel Vincent (English; Ocean), Paul St. Peter (English; Sensation)
 * Laura's father. He and Kana's father, Conrad, tend to become competitive with one another.


 * Brandy (どんちゃん, Don-chan)
 * Voiced by: Rikako Aikawa (Japanese), Don Brown (English; Ocean), Joe Ochman (English; Sensation)
 * Laura's dog. His real name is Brandon (ブランドン, Burandon). Brandy rarely does anything except yawn, but he has been considered a great friend to the Ham-Hams (He saved Boss and Bijou from drowning in episode 56 Boss, the Cool Ham of the Sea! and the Ham-Hams made him his own scarf in episode 72 The Knitting Craze.) In many of the dreams that the Ham-Hams have, Hamtaro rides Brandy. In several of those cases, he can fly. In one episode, he was even able to talk, due to Lazuli giving him a magical cookie that could make dogs talk.


 * Woody Haruna
 * Voiced by: Hiroshi Ito (Japanese), Richard Newman (English; Ocean), R. Martin Klein (English)
 * Laura's grandfather, an inventor.


 * Willow Haruna (春名 ユメ, Haruna Yume, Yume Haruna)
 * Voiced by: Masako Nozawa (Japanese), Kathy Morse (English; Ocean), Kirk Thornton (English; Sensation)
 * Laura's grandmother.

Iwata Family

 * Kana Iwata (岩田 カナ, Iwata Kana)
 * Voiced by: Ai Uchikawa (Japanese), Daniella Evangelista (English; Ocean), Neil Kaplan (English; Sensation)
 * Oxnard's owner. Kana met Laura the day Laura moved in and they have become the best of friends since then. She is also a very talented artist.


 * Conrad Iwata
 * Voiced by: Kentarō Itō (Japanese) Trevor Devall (English; Ocean), Dave Mallow (English; Sensation)
 * Kana's father. He and Laura's dad, Forrest, tend to be competitive with each other.


 * Cindy Iwata
 * Voiced by: Ellen Kennedy (English; Ocean), Melodee Spevack (English; Sensation)
 * Kana's mom and Conrad's wife.


 * Mimi Iwata (岩田 モモ, Iwata Momo, Momo Iwata)
 * Voiced by: Yūko Sasamoto (Japanese), Brenna O'Brien (English; Ocean), Kari Wahlgren (English; Sensation)
 * Panda's owner and Kana's second cousin twice removed. A kindergarten-grade student and one of the two human characters who can actually talk to the Ham-Hams. She is a patient and understanding girl, but tends to feel lonely at home.


 * Jack Iwata (岩田 竹蔵, Iwata Takezō, Takezō Iwata)
 * Voiced by: Jūrōta Kosugi (Japanese), Paul Dobson (English; Ocean), Bob Papenbrook (Engish; Sensation)
 * Mimi's father. He cares about Mimi and knows that she is lonely at home, but is not able to spend as much time with her as he likes.


 * Mac Iwata (岩田 まつお, Iwata Matsuo, Matsuo Iwata)
 * Voiced by: Rikako Aikawa (Japanese), Matt Smith and Seren Pendleton-Knoll (English; Ocean), Micheal Sorich and Bob Papenbrook (English; Sensation)
 * One of Mimi's two older brothers.


 * Josh Iwata (岩田 きくお, Iwata Kikuo, Kikuo Iwata)
 * Voiced by: Kaori Matoi (Japanese), Cathy Weseluck (English; Ocean), Jamieson Price (Engish; Sensation)
 * One of Mimi's two older brothers.


 * Tina Iwata (岩田 ヒナ, Iwata Hina, Hina Iwata)
 * Mimi's baby sister. On the day of Mimi's birthday, Tina is born.


 * Dylan (ダイスケ, Daisuke, Daisuke)
 * Voiced by: Ryōtarō Okiayu (Japanese), Michael Dobson (English; Ocean), Derek Stephen Prince (English; Sensation)
 * Kana's cousin who lives in the Flower Ranch with his hamster Pepper.

O'Hara Family

 * Maggie O'Hara (大原 マキ, Ōhara Maki, Maki Ōhara)
 * Voiced by: Fumiko Orikasa (Japanese), Peggy O'Neal (English)
 * Lapis and Lazuli's owner who lives with her grandpa at an animal ranch. She also has a pet bear cub named Kumajiro (Kuma means bear).


 * Kazuya O'Hara (大原 カズヤ, Ōhara Kazuya, Kazuya Ōhara)
 * Voiced by: Yukimasa Obi (Japanese), Tom Fahn (English)
 * Maggie's older brother and Kana's crush.


 * Maggie's Grandfather (マキちゃんのおじいちゃん, Maki-chan no Ojii-chan)
 * Voiced by: Junpei Takiguchi (Japanese), Mary Elizabeth McGlynn (English)


 * Kumajirō (クマ次郎, Kumajirō)
 * Voiced by: Yoshimitsu Shimoyama (Japanese), Mona Marshall (English)
 * Maggie's pet bear cub.

Other characters

 * June (ジュン, Jun)
 * Voiced by: Kaori Matoi (Japanese), Jocelyn Loewen (English; Ocean), Melissa Fahn (English; Sensation)
 * Pashmina's owner. Best friends with Kylie. She hates Glitter a lot because of her attitude.


 * Kylie (キョウコ, Kyōko)
 * Voiced by: Tomoko Ishimura (Japanese), Lanie McAuley and Saffron Henderson (English; Ocean), Mary Elizabeth McGlynn and Peggy O'Neal (English; Sensation)
 * Penelope's owner. Best friends with June.


 * Travis Tyler (木村 太一, Kimura Taichi, Taichi Kimura)
 * Voiced by: Yū Asakawa (Japanese), Matt Smith (English; Ocean), Joe Ochman (English; Sensation)
 * Laura's friend and the school's best soccer player. Laura has a huge crush on him and it is shown later that he seemingly returns her feelings, though he moves away at the end of the series.


 * Maria (マリア, Maria)
 * Voiced by: Megumi Toyoguchi (Japanese), Brittney Wilson (English; Ocean), Dorothy Elias-Fahn (English; Sensation)
 * The owner of Bijou. Maria is a talented pianist. She and Laura only became friends in season 2 (they never meet in season 1).


 * Katrinne (カトリーヌ, Katorīnu)
 * Voiced by: Kaori Matoi (Japanese), Tifanie Christun (English)
 * Oshare-chan's owner and Maria's friend.


 * Glitter Curi (栗原 くるみ, Kurihara Kurumi, Kurumi Kurihara)
 * Voiced by: Chinami Nishimura and Tomoe Hanba (Japanese), Kelly Sheridan (English; Ocean), Mary Elizabeth McGlynn (English; Sensation)
 * The owner of Sparkle. A spoiled and arrogant pop star who is used to always getting her way. She tries to win over Travis, who is friends with Laura. Because of this, Glitter has a bitter rivalry with Laura. However, like her hamster, Sparkle, Glitter’s spoiled attitude gradually changes, and she becomes more humble, even forming a friendship with Laura later in the series.


 * Roberto Arvelo (ロベルト高城, Roberuto Takagi, Roberto Takagi)
 * Voiced by: Sachi Matsumoto (Japanese), Matt Hill (English; Ocean), Jamieson Price (English; Sensation)
 * He becomes Laura's classmate in season 2. Roberto is a very arrogant but talented soccer player on the school soccer team. He often argues with Travis and Laura, but deep down, Roberto is really a kind boy who is often misunderstood. He is also an animal lover, and is fond of Laura's dog Brandy. He has a puppy named Samba who debuted in episode 97, "Who Stole My Shoe?" It is implied that he has a crush on Laura. Roberto is half-Japanese and half-Brazilian in the original version.


 * Mia
 * Voiced by: Chantal Strand (English; Ocean), Peggy O'Neal (English; Sensation)
 * Laura and Kana's classmate, who owns the kitten of which Boss and the rest of the Ham-Hams took care.


 * Melanie Foster
 * Voiced by: Chiara Zanni (English; Ocean), Mari Devon (English; Sensation)
 * Laura's old friend and former neighbor when she and her family previously lived in an apartment.


 * Hillary (ヒカリ, Hikari)
 * Voiced by: Yūko Katō (Japanese), Kelly Sheridan (English; Ocean), Dina Sherman (English; Sensation)
 * Sandy's owner. A very athletic girl who has won several gold medals in gymnastics. Her athleticism has inspired Sandy's own athletic efforts.


 * Noel (ノリオ, Norio)
 * Voiced by: Nobuyuki Hiyama (Japanese), Kirby Morrow (English; Ocean), Michael Reisz (English; Sensation)
 * Stan's owner. Has a crush on Hillary, but unfortunately is very shy, the opposite of Stan.


 * Goldie Houston (浪花 都, Namihana Miyako, Miyako Namihana)
 * Voiced by: Kaoru Morota (Japanese), Saffron Henderson (English; Ocean), Michelle Ruff (English; Sensation)
 * Howdy's owner and the refined shopkeep of the "Namihana Shop". She is a fan of the Hanshin Tigers and commemorates each of their victories by holding a sale at her shop. She was a lover of Curtis during her student days. She is skilled at baseball.


 * Zack Houston (浪花 サダ吉, Namihana Sadakichi, Sadakichi Namihana)
 * Voiced by: Chiyako Shibahara (Japanese), Jillian Michaels (English; Ocean), Steve Blum (English; Sensation)
 * Goldie's son and a classmate of Yume-chan. Like his mother, he is a fan of the Hanshin Tigers. He longs to see Curtis again.


 * Curtis Milan (丈二, Jōji)
 * Voiced by: Kazuhiro Yamaji (Japanese), Ted Cole (English; Ocean), Philece Sampler (English; Sensation)
 * Dexter's owner. He manages a glasses/Italian shop named "Rare Glasses". He is a rash man who tends to put on airs. He was a lover of Goldie during his school days. He drives a Fiat Panda.


 * Sue (サエ, Sae) and Kip (ユウ, Yū)
 * Voiced by: Hyōsei and Tokuyoshi Kawashima (Japanese), Nicole Oliver and Richard Ian Cox (English; Ocean), Tifanie Christun and Michael Reisz (English; Sensation)
 * Cappy's owners who run a craft store. They love Cappy like their own child, and constantly spoil him.


 * Dr. Lion (ライオン先生, Raion-sensei)
 * Voiced by: Masashi Ebara (Japanese), Steve Staley (English)
 * Flora's owner and a famous veterinarian.


 * Yume (ユメ, Yume)
 * Voiced by: Taeko Kawata (Japanese), Brianne Siddall (English)
 * Maxwell's owner and a classmate of Goldie. She is the daughter of a bookstore owner.


 * Philip Yoshi (山田一郎, Yamada Ichirō, Ichirō Yamada)
 * Voiced by: Chihiro Suzuki (Japanese), Scott McNeil (English; Ocean), Steve Blum (English; Sensation)
 * Laura's teacher. A young and enthusiastic teacher, who is very good at his job. Outside of his job, he is more wimpy and has a morbid fear of chickens. However, he has conquered his fear several times to win the heart of Charlotte Rooster. He is now married to her, and they even have a child (in the Japanese version), whom the Ham-Hams often try to protect.


 * Charlotte Rooster (稲鳥 サクラ, Inatori Sakura, Sakura Inatori)
 * Voiced by: Fumiko Orikasa (Japanese), Venus Terzo (English; Ocean), Michelle Ruff (English; Sensation)
 * Philip Yoshi's girlfriend who later becomes his wife. She is the daughter of Chairman Rooster, who is very strict. They have one child.


 * Yamato Rooster (稲鳥 大和, Inatori Yamato, Yamato Inatori)
 * Voiced by: Kaori Tsuji (Japanese), Tara Strong (English)
 * The infant son of Philip and Charlotte Rooster.


 * Chairman Rooster (稲鳥会長, Inatori-kaichō, Chairman Inatori)
 * Voiced by: Kiyoshi Kawakubo (Japanese), Scott McNeil (English; Ocean), Brian Donovan (English; Sensation)
 * The father of Charlotte Rooster and father-in-law of Philip. He is very strict and traditional, believing that Mr. Yoshi is not good enough for Charlotte. When Mr. Yoshi proves his devotion to Charlotte by going to find her on their wedding day, Chairman Rooster finally relents and accepts Mr. Yoshi.


 * Butler (執事, Shitsuji)
 * Voiced by: Toshitaka Hirano (Japanese), Ted Cole (English; Ocean), Paul St. Peter (English; Sensation)
 * The butler of the Rooster family.


 * Yamaguchi (山口)
 * Voiced by: Kaori Matoi (Japanese), Michael Reisz (English)
 * A classmate of Laura who plans on joining the soccer club. He is named after Tokio member Tatsuya Yamaguchi.


 * Matsuoka (松岡)
 * Voiced by: Miharu Iijima (Japanese), Dave Wittenberg (English)
 * A soccer club member and classmate of Laura. He is named after Tokio member Masahiro Matsuoka.


 * Nagase (長瀬)
 * Voiced by: Keiko Nemoto (Japanese), Dave Wittenberg (English)
 * A soccer club member and classmate of Laura. He is named after Tokio member Tomoya Nagase.


 * Samba (サンバ, Sanba)
 * Voiced by: Rei Sakuma (Japanese), Frank Welker (English)
 * Roberto's dog.


 * Emi (絵美, Emi)
 * Voiced by: Miwa Kōzuki (Japanese), Mona Marshall (English)
 * Solara's owner. Her house is surrounded by sunflowers.


 * Yukio (幸夫, Yukio)
 * Voiced by: Hiroshi Tsuchida (Japanese), Steve Staley (English)
 * Emi-chan's father. He is the organizer of the Sunflower Festival.


 * Sachiko (佐知子, Sachiko)
 * Voiced by: Izumi Kikuchi (Japanese), Michelle Ruff (English)
 * Emi-chan's mother and a friend of Laura's mother.


 * Atsuko Mushakōji (武者小路 篤子, Mushakōji Atsuko)
 * Voiced by: Rio Natsuki (Japanese), Peggy O'Neal (English)
 * Shake's owner and the daughter of a high-class family.


 * Jirō (ジロー, Jirō)
 * Voiced by: Masaki Mimoto (Japanese), Daran Norris (English)
 * Gelato's owner and an ice cream vendor.


 * Princess (リリィ, Ririi, Lilly)
 * Voiced by: Fuyuka Ōura (Japanese), Peggy O'Neal (English)
 * Maria's pet dog.


 * Kaede (楓, Kaede)
 * Voiced by: Tomoko Miyadera (Japanese), Beau Billingslea (English)


 * Yūji (裕二)
 * Voiced by: Tokuyoshi Kawashima (Japanese), Mala Miles (English)


 * Mister Kaori (薫先生, Kaori-sensei)
 * Voiced by: Hiro Yūki (Japanese), Bridget Hoffman (English)
 * A knitting lecturer and Barrette's owner.


 * Gabriel Black (緑川先生, Midori-sensei, Mister Midori)
 * Voiced by: Tetsuo Gotō (Japanese), Jamieson Price (English)
 * A famous author with a liking for pranks and an intimate relationship with Laura's father.


 * Ethan (ユウジ, Yūji, Yūji)
 * Voiced by: Wakako Taniguchi (Japanese), Cathy Weseluck (English; Ocean), Richard Cansino (English; Sensation)
 * Mimi's boyfriend and Kylie's cousin.


 * Kenta (ケンタ, Kenta)
 * Voiced by: Keiko Nemoto (Japanese), Paul St. Peter (English)
 * A boy who lives in the neighborhood of Laura's grandpa.


 * Herbert (トン吉, Tonkichi, Tonkichi)
 * Voiced by: Kujira (Japanese), Samuel Vincent (English; Ocean), Debi Derryberry (English; Sensation)
 * Jingle's pet pig. Jingle uses Herbert as his mode of transportation. Since Jingle rarely cares about where he's going or where he'll stop, he usually lets Herbert decide. However, if he sees some corn, Herbert will charge at immense speeds. He also seems to like Penelope a lot.


 * The Chicky-Chicky Gang (Poyi-Poyi)
 * Voiced by:
 * A evil group of five villainous ill-tempered baby chicks owned by Charlotte, they will relentlessly attack the Ham-Hams if given the chance. The leader is a baby chick with a scar on his forehead and an eye patch.


 * Françoise (どんちゃ, Doncha)
 * Voiced by: Samuel Vincent (English; Ocean), Wendee Lee (English; Sensation)
 * A pigeon which is both Sabu's friend and “girlfriend”. She often is transportation for Hamtaro.


 * The three crow ladies
 * Voiced by:
 * Never appeared in the English dub. The leader's name is Ran.

General

 * DJ Ham (DJハム, DJ Hamu)
 * Voiced by: Banana Ice

A DJ hamster with dreadlocks who appears in all four Hamtaro movies. Never seen outside of Asia except for the Italian and Finnish dubs.

First film

 * Fairy Ham (Tinkle) (妖精ハム（ティンクル）, Yōsei Hamu (Tinkuru))
 * Voiced by: Kotono Mitsuishi (Japanese), Mona Marshall (English)
 * A fairy who watches over Ham-Ham Land.


 * Devil King Ham (Ryū Hamuyama) (魔王ハム（ハム山リュウ）, Maō Ham (Hamuyama Ryū))
 * Voiced by: Kenyū Horiuchi (Japanese), Paul St. Peter (English)
 * A self-proclaimed devil king who dwells in Ham Ham Land.