 Christopher SeanKen Sato / Ultraman (voice) | Ken Sato / Ultraman (voice) |
 Gedde WatanabeProfessor Sato / Ultradad (voice) | Professor Sato / Ultradad (voice) |
 Tamlyn TomitaMina / Emiko Sato (voice) | Mina / Emiko Sato (voice) |
 Keone YoungDr. Onda (voice) | Dr. Onda (voice) |
 Julia HarrimanAmi Wakita (voice) | Ami Wakita (voice) |
 Hiro NakamuraKenji (voice) | Kenji (voice) |
 Rob FukuzakiGame Commentator (voice) | Game Commentator (voice) |
 Frank BuckleyAnnouncer / Additional Voices (voice) | Announcer / Additional Voices (voice) |
 François ChauItow-san / Additional Voices (voice) | Itow-san / Additional Voices (voice) |
 Robert YasumuraKubo-san (voice) | Kubo-san (voice) |
 Artt ButlerCoach Shimura / Additional Voices (voice) | Coach Shimura / Additional Voices (voice) |
 Karen MaruyamaOba-chan (voice) | Oba-chan (voice) |
 Mayumi YoshidaTV Reporter (voice) | TV Reporter (voice) |
 Mila O'MalleyChiho (voice) | Chiho (voice) |
 Jonathan OhyeYakult Catcher / Additional Voices (voice) | Yakult Catcher / Additional Voices (voice) |
 Vic ChaoKDF Pilot #3 / Additional Voices (voice) | KDF Pilot #3 / Additional Voices (voice) |
 Bret MarnellKDF Flight Control / Additional Voices (voice) | KDF Flight Control / Additional Voices (voice) |
 Julia KatoUmpire #3 (voice) | Umpire #3 (voice) |
 Brittany IshibashiMrs. Onda / Additional Voices (voice) | Mrs. Onda / Additional Voices (voice) |
| VVeronica LapkeAkiko (voice) | Akiko (voice) |
 Lee ShortenCaptain Aoshima (voice) | Captain Aoshima (voice) |
 Jonathan GroffBunny (Ollie) (voice) | Bunny (Ollie) (voice) |
 Masa KanomeUmpire #4 (voice) | Umpire #4 (voice) |
 Paul NakauchiAdditional Voices (voice) | Additional Voices (voice) |
