Recurring: Aimée Zannoni (A-ko), Amy Kincaid (Class President), Barbara Goodson (Oihiko's Mother), Darrel Guilbeau (No. 2), Doug Stone (Oihiko's Father), Jane Lingo (B-ko/Biko), Justin Gross (Hironobu Nonaka), Liam O'Brien (No. 3), Maureen Stevenson (Uchimura), Sam Regal (Hikoro 'Oihiko' Oikawa), Victoria Harwood (Rubi), Wendee Lee (Mitsuka Yoshimine), Yuri Lowenthal (Khi)
Recurring: Aimée Zannoni (A-ko), Amy Kincaid (Class President), Barbara Goodson (Oihiko's Mother), Darrel Guilbeau (No. 2), Doug Stone (Oihiko's Father), Jane Lingo (B-ko/Biko), Justin Gross (Hironobu Nonaka), Liam O'Brien (No. 3), Maureen Stevenson (Uchimura), Michael McConnohie (Principal), Sam Regal (Hikoro 'Oihiko' Oikawa), Victoria Harwood (Rubi), Wendee Lee (Mitsuka Yoshimine), Yuri Lowenthal (Khi)
Incidental: J.E. Jaress (Kuwaoka), Tara Platt (Girl)
Recurring: Aimée Zannoni (A-ko), Amy Kincaid (Class President), Barbara Goodson (Oihiko's Mother, Grandmother), Carrie Savage (Nia), Darrel Guilbeau (No. 2), Doug Stone (Oihiko's Father), Jane Lingo (B-ko/Biko), Justin Gross (Hironobu Nonaka), Liam O'Brien (No. 3), Maureen Stevenson (Uchimura), Michael McConnohie (Principal), Patrick Seitz (Xaki), Sam Regal (Hikoro 'Oihiko' Oikawa), Wendee Lee (Mitsuka Yoshimine), William Knight (Grandfather)
Incidental: Ben Summer (Vegetable Man), Natalie Bergeson (Houswife)
Recurring: Aimée Zannoni (A-ko), Amy Kincaid (Class President), Barbara Goodson (Oihiko's Mother, Grandmother), Carrie Savage (Nia), Darrel Guilbeau (No. 2), Jane Lingo (B-ko/Biko), Justin Gross (Hironobu Nonaka), Liam O'Brien (No. 3), Maureen Stevenson (Uchimura), Michael McConnohie (Principal), Patrick Seitz (Xaki), Sam Regal (Hikoro 'Oihiko' Oikawa), Victoria Harwood (Rubi), Wendee Lee (Mitsuka Yoshimine), William Knight (Grandfather), Yuri Lowenthal (Khi)
Incidental: Ben Summer (Boy Student B), Maureen Stevenson (Student Announcer), Patrick Seitz (Boy Student A)
Recurring: Aimée Zannoni (A-ko), Amy Kincaid (Class President), Darrel Guilbeau (No. 2), Jane Lingo (B-ko/Biko), Jason C. Miller (Hironobu Nonaka), Liam O'Brien (No. 3), Maureen Stevenson (Uchimura), Sam Regal (Hikoro 'Oihiko' Oikawa), Victoria Harwood (Rubi), Wendee Lee (Mitsuka Yoshimine), Yuri Lowenthal (Khi)
Recurring: Aimée Zannoni (A-ko), Amy Kincaid (Class President), Barbara Goodson (Oihiko's Mother, Grandmother), Carrie Savage (Nia), Doug Stone (Gen, Oihiko's Father), Jane Lingo (B-ko/Biko), Jason C. Miller (Hironobu Nonaka), Jennifer Sekiguchi (Natsuki Ikuhara), Maureen Stevenson (Uchimura), Patrick Seitz (Xaki), Sam Regal (Hikoro 'Oihiko' Oikawa), Victoria Harwood (Rubi), Wendee Lee (Mitsuka Yoshimine), William Frederick (Grandfather), Yuri Lowenthal (Khi)
Incidental: Tara Platt (Girl Student), William Frederick (Biceps Manager)
Recurring: Aimée Zannoni (A-ko), Amy Kincaid (Class President), Darrel Guilbeau (No. 2), Doug Stone (Principal, Gen), Jane Lingo (B-ko/Biko), Jason C. Miller (Hironobu Nonaka), Jennifer Sekiguchi (Natsuki Ikuhara), Kirsten Potter (Harumi Ikuhara), Liam O'Brien (No. 3), Maureen Stevenson (Uchimura), Sam Regal (Hikoro 'Oihiko' Oikawa), Wendee Lee (Mitsuka Yoshimine), Yuri Lowenthal (Khi)
Incidental: Alex Fink (Tour conductor), Dave Stann (Tourist), Michelle Ruff (Takeya: Child)
Recurring: Amy Kincaid (Class President), Barbara Goodson (Oihiko's Mother, Grandmother), Carrie Savage (Nia), Darrel Guilbeau (No. 2), Doug Stone (Oihiko's Father), Jane Lingo (B-ko/Biko), Jason C. Miller (Hironobu Nonaka), Liam O'Brien (No. 3), Maureen Stevenson (Uchimura), Sam Regal (Hikoro 'Oihiko' Oikawa), Tara Platt (Eiko), Victoria Harwood (Rubi), William Frederick (Grandfather), Yuri Lowenthal (Khi)
Episodic: Doug Stone (Miu's Master)
Incidental: Hunter Austin (Girl), Sam Regal (Assassin)
Recurring: Amy Kincaid (Class President), Barbara Goodson (Oihiko's Mother), Darrel Guilbeau (No. 2), Doug Stone (Oihiko's Father), Jane Lingo (B-ko/Biko), Liam O'Brien (No. 3), Sam Regal (Hikoro 'Oihiko' Oikawa), Tara Platt (Eiko), Wendee Lee (Mitsuka Yoshimine)
Incidental: Barbara Goodson (Boy 1, Taichi), Hunter Austin (Boy 2), Michelle Ruff (Takeya: Child)
Recurring: Carrie Savage (Nia), Doug Stone (Oihiko's Father), Jason C. Miller (Hironobu Nonaka), Jennifer Sekiguchi (Natsuki Ikuhara), Kirsten Potter (Harumi Ikuhara), Liam O'Brien (No. 3), Maureen Stevenson (Uchimura), Michael McConnohie (Gen), Sam Regal (Hikoro 'Oihiko' Oikawa), Tara Platt (Eiko), Victoria Harwood (Rubi), Wendee Lee (Mitsuka Yoshimine), Yuri Lowenthal (Khi)
Episodic: Hunter Austin (Reporter)
Incidental: Barbara Goodson (Aunt), Jack Lingo (Employee A), Jason C. Miller (Cameraman), Liam O'Brien (Employee B), Patrick Seitz (Male Customer)
Recurring: Amy Kincaid (Class President), Barbara Goodson (Oihiko's Mother), Carrie Savage (Nia), Darrel Guilbeau (No. 2), Doug Stone (Oihiko's Father), Jane Lingo (B-ko/Biko), Jason C. Miller (Hironobu Nonaka), Jennifer Sekiguchi (Natsuki Ikuhara), Liam O'Brien (No. 3), Maureen Stevenson (Uchimura), Michael McConnohie (Gen), Patrick Seitz (Xaki), Sam Regal (Hikoro 'Oihiko' Oikawa), Tara Platt (Eiko), Victoria Harwood (Rubi), Wendee Lee (Mitsuka Yoshimine), Yuri Lowenthal (Khi)
Incidental: Liam O'Brien (Chef)
Recurring: Amy Kincaid (Class President), Carrie Savage (Nia), Darrel Guilbeau (No. 2), Jane Lingo (B-ko/Biko), Jason C. Miller (Hironobu Nonaka), Liam O'Brien (No. 3), Maureen Stevenson (Uchimura), Michael McConnohie (Gen, Principal), Patrick Seitz (Xaki), Sam Regal (Hikoro 'Oihiko' Oikawa), Tara Platt (Eiko), Victoria Harwood (Rubi), Wendee Lee (Mitsuka Yoshimine), Yuri Lowenthal (Khi)
Incidental: Doug Stone (Manager)
Recurring: Amy Kincaid (Class President), Barbara Goodson (Oihiko's Mother, Grandmother), Carrie Savage (Nia), Darrel Guilbeau (No. 2), Doug Stone (Oihiko's Father), Jane Lingo (B-ko/Biko), Jason C. Miller (Hironobu Nonaka), Jennifer Sekiguchi (Natsuki Ikuhara), Kirsten Potter (Harumi Ikuhara), Liam O'Brien (No. 3), Maureen Stevenson (Uchimura), Michael McConnohie (Gen, Principal), Patrick Seitz (Xaki), Sam Regal (Hikoro 'Oihiko' Oikawa), Tara Platt (Eiko), Victoria Harwood (Rubi), Wendee Lee (Mitsuka Yoshimine), William Frederick (Grandfather), Yuri Lowenthal (Khi)
Incidental: J.E. Jaress (China)
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