- Hisato Izaki
- Akira Fudô / Devilman
- Yûsuke Izaki
- Ryô Asuka / Satan
- Ayana Sakai
- Miki Makimura
- Ryûdô Uzaki
- Keisuke Makimura (Miki's father)
- Yôko Aki
- Emi Makimura (Miki's mother)
- Hirotarô Honda
- Professor Asuka
- Ai Tominaga
- Sirene
- Asuka Shibuya
- Miiko Kawamoto
- Shôta Sometani
- Susumu
- Bob Sapp
- Newscaster Morrison
- Masaki Nishina
- Masao Ushiku
- Mikio Ôsawa
- Takao Shigemori
- Kazuhiko Kanayama
- Aoyama
- Kitarô
- Ueda
- Minoru Torihada
- Tsukuda
- Masayuki Imai
- Numata
- Mitsutoshi Shundo
- Nagata
- Masakatsu Funaki
- Jinmen
- Suzunosuke Tanaka
- Roppei Musaka
- Takuji Kawakubo
- Yoji
- Takamasa Nakayama
- Minoru
- Hitomi Nakahodo
- Saori
- Kana Ishikawa
- Yuka
- Yuko Morimoto
- Miho
- Ichirô Ogura
- Susumu's Father
- Yoriko Dôguchi
- Susumu's Mother
- Moro Morooka
- Tsukuda's Colleague
- Masashi Arifuku
- Tsukuda's Colleague
- Toshikazu Fukawa
- Teacher
- Konishiki
- Hideout Demon
- Sachiko Kobayashi
- Middle-Aged Neighbor
- Gô Nagai
- Priest
- Kôji Matoba
- Handicapped Man w / Gun
- Kyûsaku Shimada
- Subway Passenger
- Mark Musashi
- LAPD
- Ruben Arvizu
- Walla
- Mari Devon
- Susumu's Mother / Web Design Teacher / Walla (voice) (uncredited)
- Peter Doyle
- Akira Fudô
- Jessica Gee-George
- Emi Makimura / Walla (voice) (uncredited)
- Grant George
- Ryô Asuka / Turtle Vendor (voice) (uncredited)
- Dave Mallow
- Yellow Beanie / Demon Unit Dispatch / Demon Unit Soldier / Gangbanger / Walla (voice) (uncredited)
- Mona Marshall
- Susumu / Bully (voice) (uncredited)
- Bryce Papenbrook
- Ushiku / Cop with Green Blazer / LAPD Cop / Mob Member / Walla (voice) (uncredited)
- Cindy Robinson
- Mîko / Young Ryo (voice) (uncredited)
- Stephanie Sheh
- Miki Makimura / Young Ryô (voice) (uncredited)
- Michael Sorich
- Bill Jackson / Demon Unit Officer 2 / Keisuke's Captured Co-Worker / Walla (voice) (uncredited)
- Doug Stone
- Keisuke Makimura / Ueda / Keisuke's Older Co-Worker (voice) (uncredited)
- Dan Woren
- Prof. Asuka / Gangbanger / Walla (voice) (uncredited)
