Ikki Tenryou’s voice actor in Medabots is Michiru Yamazaki in the Japanese version. In the English dub of the original TV series, Ikki is voiced by Samantha Reynolds; English-language cast listings also note Julie Lemieux for Medabots: Spirits.
For the original Japanese version of Medabots, the key name attached to Ikki is Michiru Yamazaki, a Japanese voice actress and stage actress affiliated with Ken Production. Her agency profile specifically lists “Medarot — Ikki / main role” among her representative works, which makes her the primary answer to the search query about Ikki Tenryou’s Japanese voice actor.
Japanese Voice Actor: Michiru Yamazaki
Date of Birth
February 10, 1978. Ken Production publicly lists her birthday as February 10, while biographical databases including Japanese Wikipedia and IMDb give the full date as February 10, 1978.
About Michiru
Michiru Yamazaki is a Japanese voice actress and stage actress known for voicing young protagonists and supporting characters across anime, games, and stage work. Her official agency profile says she trained at Yoyogi Animation Academy, belongs to Ken Production, and counts Medarot’s Ikki plus My Hero Academia among her representative credits. Public biographical sources also note that she previously worked with the theater troupe Kamukamu Minikina and was part of the unit Shichimi with Shizuka Ito and Hitomi Nabatame.
What makes Yamazaki especially relevant to Medabots fans is continuity. Databases and cast listings connect her not only to the 1999–2001 Medarot/Medabots anime, but also to later franchise game entries such as Medarot 3, Medarot 4, Medarot Brave, and Medarot S, showing that she remained one of the defining performers for Ikki across multiple releases.
Hometown
Ibaraki Prefecture, Japan. Her Ken Production profile lists Ibaraki as her birthplace, and biographical listings match that information.
Career Highlights
Michiru Yamazaki’s most search-relevant and documented highlights include:
- Ikki Tenryou in Medarot / Medabots — the lead role highlighted by her agency profile.
- Papipurio in Konjiki no Gash Bell!! / Zatch Bell! — one of her better-known recurring anime parts.
- Kota Izumi in My Hero Academia — a later-career credit that kept her visible to newer anime audiences.
- Yukino Oribe in Tokyo Majin and young Masaru Daimon in Digimon Savers — notable supporting roles that show her range in youth and character voices.
For Medabots specifically, Yamazaki is the voice most closely associated with Ikki in Japanese cast documentation, and character voice databases describe her as the actor who has voiced Ikki the most times across the franchise.
Full Current Filmography
The list below reflects documented credits found in Ken Production’s profile and the Japanese Wikipedia entry for Michiru Yamazaki. Because agency pages are selective and database completeness can vary, this should be read as a documented-credit filmography rather than a guaranteed exhaustive master list.
Television anime
- 1999–2002 — Ojamajo Doremi series — Takao Kimura, club member B, Onpu fan, drunken witch, Masayoshi Nakajima
- 1999–2002 — Kochira Katsushika-ku Kameari Kōen-mae Hashutsujo — student, child, Kankichiro, policewoman, Ishiatama Ippōtsūkō, schoolgirl, Makoto
- 1999–2001 — Medarot / Medabots — Ikki Tenryou
- 2001 — Dr. Rin ni Kiitemite! — Takeshi Imai
- 2001 — Yu-Gi-Oh! Duel Monsters — boy
- 2001 — Vampiyan Kids — Kinta
- 2003 — The Prince of Tennis — Hiroshi/Hiro
- 2003–2006 — Konjiki no Gash Bell!! — Papipurio
- 2004 — Paranoia Agent — role not specified in the source excerpt
- 2004 — Fullmetal Alchemist — boy
- 2004 — Samurai Champloo — child Tatsunoshin
- 2004 — Hanaukyo Maid Team La Verite — security maid
- 2005 — Suki na Mono wa Suki Dakara Shōganai!! — Kōno
- 2005 — Yakitate!! Japan — clown boy
- 2005–2006 — Onegai My Melody — Masahiro Nakazawa
- 2006 — Amaenaideyo!! Katsu!! — Susumu
- 2006 — Wan Wan Celepoo Soreyuke! Tetsunoshin — Kyōko
- 2006 — Kotenkotenko — citizen of Heaven Country, Fairy 4, seal, Fairy C
- 2006 — Majime ni Fumajime Kaiketsu Zorori — child, young goat C, dog boy
- 2006 — NANA — woman 2, customer
- 2006 — NIGHT HEAD GENESIS — Masayuki Yushima
- 2006 — 009-1 — mutant girl
- 2006 — Jinzo Konchū Kabutoborg VxV — Tajima
- 2007 — Digimon Savers — young Masaru Daimon
- 2007 — Tokyo Majin Gakuen Kenpucho: Ryū Ryū — Yukino Oribe
- 2007–2009 — Atashin’chi — boy B, boy A
- 2009 — Natsu no Arashi! Akinai-chū — delinquent D
- 2010 — Gokyōdai Monogatari — kindergarten child B
- 2018–2025 — My Hero Academia — Kota Izumi
OVA
- 2004 — Ojamajo Doremi Na-i-sho — Takao Kimura, Masayoshi Nakajima
- 2007 — Tomica Hyper Daisakusen! — Takuya, Kakeru-taiin
- 2007 — Nattō Boy — Kuromame
- 2008 — Tomica Hyper Daibōken! — Takuya-taiin, Kakeru-taiin
- 2009 — Plarail Waiwai DVD — Kakeru-taiin
- 2010 — Let’s Go! Tomica Boys F5 — Kakeru-taiin, unnamed Curry Snakes leader
Web anime
- 2013 — Tomica Hyper Series: Kinkyū Haibi!! Rescue Liner / Blue Police Liner / Builder Liner — Kakeru-taiin, Hyper Rescue general member
Games
- 2000 — Sei Luminous Jogakuin — Anri Mizuno
- 2000 — Medarot 3 — Ikki Tenryou
- 2001 — Medarot 4 — Ikki Tenryou
- 2003 — Medarot Brave — Ikki Tenryou
- 2020 — Medarot S — Ikki Tenryou
- 2024 — Konjiki no Gash Bell!! Towano Kizuna no Nakama-tachi — Leopardon, Papipurio
Drama CDs
- 2004 — Suki na Mono wa Suki Dakara Shōganai!! +White Flower+ Truth fall / Mission Choice — Kōno
- 2004 — Princess Princess — Tōru Kōno
- 2005 — Dai-kirai! — Arito Teshigawara
- 2006 — LOVELESS Character Drama CD MERCILESS — puppy
- 2007 — Midara na Kiss ni Midasarete — five-year-old Kamijō
- 2008 — Dare ni mo Aisarenai — Noriko
Other documented work
Ken Production also lists stage work including Aa, Shindō, Suzuki no Daichi, Science Jumbo Yogurt, Michael Relaxation / Bidan Waidan, and Kodokuna Pilot.
Critical Reception
Publicly accessible reputable sources found for this article are weighted much more toward biographical databases and credit listings than toward long-form criticism focused specifically on Michiru Yamazaki. Her agency profile foregrounds Medarot’s Ikki as a representative role, while broader databases emphasize her longevity and recurring franchise work rather than offering substantial standalone critical essays about her performances. That means the clearest critical takeaway is industry-facing: she has maintained a durable career and remained associated with franchise roles across years, especially Ikki in Medarot.
Copy-paste-friendly sources:
Ken Production profile (https://kenproduction.co.jp/talent/96)
Japanese Wikipedia entry (https://ja.wikipedia.org/wiki/山崎みちる)
IMDb profile (https://www.imdb.com/name/nm2129232/)
Behind The Voice Actors character page (https://www.behindthevoiceactors.com/characters/Medabots/Ikki-Tenryou/)
English Voice Actor: Yuka Terasaki
Date of Birth
Not publicly documented. I did not find a reliable public source that gives Samantha Reynolds’ full birth date. Her official website provides a current professional biography, but not a birth date.
About Samantha
Samantha Reynolds is a Canadian actress, voice actor, author, writer, and storyteller. On her official website, she describes a career spanning children’s television voice work, stage acting in New York and Toronto, screenwriting, short films, and children’s books. Her site also notes training at The University of Southern California, The Neighborhood Playhouse School of Theatre, and the University of British Columbia.
For Medabots search intent, Reynolds is the main English-language name attached to Ikki Tenryou in English-dub cast listings. Behind The Voice Actors identifies her as the English voice of Ikki in Medabots, while fan-maintained dub listings further break that down as episodes 1–52 of the English run. Those same listings note that later franchise material used Julie Lemieux for Ikki, so Reynolds is best understood as the primary early English TV voice for the character rather than the only English performer ever attached to him.
Hometown
Not publicly documented. Reynolds’ official biography mentions work with CanStage in Toronto and studies at UBC and USC, but I did not find a reliable public source naming her hometown.
Career Highlights
The role most directly tied to this query is Ikki Tenryou in the English dub of Medabots. Public cast references consistently associate Reynolds with Ikki, making her the core English-dub answer for the original TV version of the character.
Beyond Medabots, the documented credits most often associated with Reynolds are children’s animation roles, including Henry Wiggins in Henry’s World, Puddle in Toot & Puddle, Dooley in Willa’s Wild Life, and George Lundgren in Arthur. Her own site also emphasizes that she voiced characters across animated children’s television for companies and broadcasters including Nelvana, CBC, Family Channel, ABC Kids, and Treehouse TV.
A notable point in her broader career is that she has moved well beyond acting alone. Her official biography presents her as an award-winning writer and storyteller whose short films have won a Student Emmy and a CINE Golden Eagle Award, while her recent public-facing work centers on books and film development.
Full Current Filmography
The list below reflects documented credits found in publicly accessible sources, especially Reynolds’ official website, Behind The Voice Actors search snippets, and English-dub credit databases. Because some of the available sources are summary listings rather than comprehensive resumes, this should be read as a documented-credit filmography and may not be exhaustive.
Television animation / anime dubbing
- 2001–2002 — Medabots — Ikki Tenryou (English dub; public cast listings identify Reynolds as Ikki’s English voice, with one episode-by-episode dub listing assigning her to episodes 1–52)
- 2002–2004 — Henry’s World — Henry Wiggins
- 2008 — Dex Hamilton: Alien Entomologist — Hanry (episode 2, per documented dub listings)
- 2008–2011 — Toot & Puddle — Puddle
- 2008–2009 — Willa’s Wild Life — Dooley
- 2009–2010 — Arthur — George Lundgren / George
- 2010–2013 — Babar and the Adventures of Badou — Additional voices
Live-action voice / ADR
- 2008 — Repo! The Genetic Opera — ADR loop group
Writing / film work noted on her official site
Reynolds’ official biography does not give a title-by-title acting filmography, but it does state that she has written award-winning short films and screenplays, and that she is developing animated television projects in addition to her children’s books.
Critical Reception
There is very little substantial mainstream criticism focused specifically on Samantha Reynolds’ voice-acting performances in the sources I could verify. The public record is much stronger on credits and biography than on reviews. In practice, that means the clearest reception signal is not newspaper-style critique but role association: fan-facing voice databases consistently foreground Ikki Tenryou as the performance she is best known for in anime dubbing, and her official site frames her as a long-running children’s media performer who later expanded into writing and filmmaking.
That is also why searches for “Ikki Tenryou English voice actor” tend to resolve to Reynolds first. Even where later listings note Julie Lemieux for Medabots: Spirits or later portions of the dub record, Reynolds remains the most directly associated English answer for the original Medabots TV query.
Copy-paste-friendly sources:
Behind The Voice Actors – Ikki Tenryou in Medabots (https://www.behindthevoiceactors.com/tv-shows/Medabots/Ikki-Tenryou/)
Behind The Voice Actors – Medabots: Spirits cast (https://www.behindthevoiceactors.com/tv-shows/Medabots-Spirits/)
Behind The Voice Actors – Ikki Tenryo in Medabots: Spirits (https://www.behindthevoiceactors.com/tv-shows/Medabots-Spirits/Ikki-Tenryo/)
Samantha Reynolds official biography (https://www.samanthareynoldswrites.com/about-6)
English Voice Over Wikia – Samantha Reynolds (https://english-voice-over.fandom.com/wiki/Samantha_Reynolds)
Social Media
YouTube: @samanthareynoldswrites (https://www.youtube.com/@samanthareynoldswrites)
