A star athlete reluctantly returns home to take over his father's duties as Ultraman, shielding Tokyo from giant monsters as he becomes a legendary hero.
Christopher Sean
as Ken Sato / Ultraman (voice)
Gedde Watanabe
as Professor Sato / Ultradad (voice)
Tamlyn Tomita
as Mina / Emiko Sato (voice)
Keone Young
as Dr. Onda (voice)
Julia Harriman
as Ami Wakita (voice)
Rob Fukuzaki
as Game Commentator (voice)
Frank Buckley
as Announcer / Additional Voices (voice)
François Chau
as Itow-san / Additional Voices (voice)
Robert Yasumura
as Kubo-san (voice)
Artt Butler
as Coach Shimura / Additional Voices (voice)
Karen Yasumura
as Oba-chan (voice)
Mayumi Yoshida
as TV Reporter (voice)
