Makoto Furukawa
Saitama (voice) (25 eps)
Kaito Ishikawa
Genos (voice) (25 eps)
Hiroki Yasumoto
King (voice) (24 eps)
Kazuhiro Yamaji
Silverfang (voice) (24 eps)
Yuichi Nakamura
License-less Rider (voice) (24 eps)
Kenjiro Tsuda
Atomic Samurai (voice) (24 eps)
Aoi Yuki
Terrible Tornado (voice) (24 eps)
Saori Hayami
Hellish Blizzard (voice) (24 eps)
Yoji Ueda
Drive Knight (voice) (13 eps)
Daisuke Namikawa
Pig God (voice) (13 eps)
Minami Takayama
Child Emperor (voice) (12 eps)
Takahiro Sakurai
Zombieman (voice) (12 eps)
Hikaru Midorikawa
Garou (voice) (12 eps)
Satoshi Hino
Superalloy Blackluster (voice) (12 eps)
Yuji Ueda
Watchdog Man (voice) (12 eps)
Kohsuke Toriumi
Flashy Flash (voice) (12 eps)
Katsuyuki Konishi
Tank-Top Master (voice) (12 eps)
Wataru Hatano
Metal Bat (voice) (12 eps)
Masaya Onosaka
Pri-Pri-Prisoner (voice) (12 eps)
Mamoru Miyano
Handsome Sweet Mask (voice) (12 eps)
Yuki Kaji
Speed of Sound Sonic (voice) (12 eps)
Tessyo Genda
Metal Knight (voice) (12 eps)
Shinya Hamazoe
Marugori (voice) (2 eps)
Shota Yamamoto
Armored Gorilla (voice) (2 eps)
Hiroki Goto
Super Custom YO649Z Mk. II (voice) (2 eps)
Yoshiaki Hasegawa
Kamakyuri (voice) (2 eps)
Kanami Satou
Hero Association staff (voice) (2 eps)
Yukitoshi Tokumoto
Crablante (voice) (1 eps)
Takuma Suzuki
Fukegao (voice) (1 eps)
Ami Naito
Split-chinned kid (voice) (1 eps)
Kaede Yuasa
Girl (voice) (1 eps)
Miyuki Sawashiro
Mosquito Girl (voice) (1 eps)
Jiro Saito
Beast King (voice) (1 eps)
Kenta Sasa
Caster (voice) (1 eps)
Fairouz Ai
Civilian woman A (voice) (1 eps)
Yasuaki Takumi
Hellfire Flame (voice) (1 eps)
Ryusei Nakao
Vaccine Man (voice) (1 eps)