Saitama (voice)
Garo (voice)
Suiryu (voice)
Metal Knight (voice)
Watchdog Man (voice)
Tank-Top Master (voice)
Lightning Max (voice)
Snek (voice)
Mumen Rider (voice)
Gyoro-Gyoro (voice)
Goketsu (voice)
Sourface (voice)
Bakuzan (voice)
Zakkos (voice)
Choze (voice) (as Kentaro Tone)
Ring-Ring (voice)
Logy (voice)
Penpats (voice)
Hamukichi (voice)
Boltane (voice)
Mentai (voice)
Gatling (voice) (as Takahiro Yamaguchi)
Gyoffrey (voice)
Commentator (voice)
Ring Girl (voice)
Woman (voice)
Gouketsu (voice)
Spectators (voice)
Garou (voice)
Additional Voices (voice) (as Alex Schloemer)
Choze (voice)
Additional Voices (voice)
Gatlin (voice)
Gyoffery (voice)
Metal Knight (voice) (as Taylor Henry)
Emcee (voice)
Additional Voices (voice) (as Zach Rice)
Benpats (voice)
Jakumen (voice)
Zakkos (voice) (as Ethan Murray)