María Isabel Martiñón Fernández (born March 20, 1961) is a Mexican accountant turned voice actress, who began her career in the very early nineties. She's mostly known for voicing young boys and action girls.
Her star-defining role was voicing Ben Tennyson in the original Ben 10 (she was mostly known for voicing girly girls and small children in the nineties). After Ben 10, her second well-known role was Naruto Uzumaki and later Gumball Watterson.
She is known for her androgynous acting voice that works with both young male and female characters.
Anime Roles
- Agent Aika: Various Delmos
- Aggretsuko: Tsubone (season 4, replacing Karla Vega)
- Blue Seed: Sakura Yamazaki
- Bleach: child!Ichigo and Kiyone Kotetsu
- Bubblegum Crisis Tokyo 2040: Linna Yamazaki
- Burn Up W and Burn Up Excess: Lilica Ebett
- Captain Tsubasa: Kumi Sugimoto and Rika Osawa (movies only)
- Cardcaptor Sakura: Chiharu Mihara and Youko Nakagawa
- Corrector Yui: Ecco and Reiko Kanonzaki
- Cowboy Bebop: Edward Fong Hau Pepelu Tivrusky IV (Ed)
- Cyborg 009 (2001 series): Jimmy, Princess Ixquic, Shiori and Black Ghost Brain 3 (child voice)
- Digimon Adventure and Digimon Adventure 02: Patamon and Mimi Tachikawa
- Dragon Ball (GT and Kai: The Final Chapters): Bura Brief
- Dragon Ball Z: Bulma (ep. 60 and The Path to Power) and Selypa (Bardock: The Father of Goku)
- Dragon Ball Super: Puar
- Dr. Slump: Piisuke
- Elfen Lied: Young Kouta (with Bruno Coronel as adult!Kouta)
- Fire Force: Nataku "Tak" Son
- Martian Successor Nadesico (movie only): Hikaru Amano
- Mieruko-chan: Mitsue Takeda
- My Hero Academia: Two Heroes: Minoru Mineta
- Naruto: Naruto Uzumaki
- Ojamajo Doremi: Kaori Shimakura
- Pilot Candidate: Teela Zain Elmes
- Pokémon: The Series: many roles, including but not limited to: Emily (Orange League), Keegan (Johto), Princess Sara and Callista (Advanced Generation)
- Powerpuff Girls Z: Ken Kitazawa
- Ranma ½: Nabiki Tendo (OAVs only)
- Saber Marionette J and J to X : Lorelei
- Sailor Moon: Unazuki Furuhata, Elsa Gray and many additional voices
- Slam Dunk: One of Rukawa's fangirls
- Yu-Gi-Oh! GX: Jaden/Judai Yuki (first voice)
Live-Action TV roles
- 7th Heaven: Simon Camden (first voice, later replaced by Enzo Fortuny)
- CSI: Dr. Jenna Williams
- Everybody Hates Chris: Rochelle
- Hannah Montana: Nora
- Isaura the Slave (2004): Flor-de-Lis and Juliana
- Lost: Karen Pace
- Ultraman Tiga: Rena Yanase.
Video Game roles
- Doom Eternal: Khan Maykr (Nika Futterman)
- Naruto Shippuden Ultimate Storm 4 and Road to Boruto: Naruto Uzumaki
- Scribble Nauts: Lily
Western Animation roles
- Adventure Time: Marceline the Vampire Queen
- The Amazing World of Gumball: Gumball Watterson (since The Quest)
- Ben 10: Ben Tennyson (original series and childhood flashbacks)
- Biker Mice from Mars: Carbine (original series)
- Dexter's Laboratory: Dee Dee
- Jimmy Neutron: Boy Genius: Carl
- Peanuts: Linus Van Pelt
- Peppa Pig: Mummy Pig (Mexican dub)
- Rocket Power: Otto Rocket
