Chief (voice)
Atari (voice)
Rex (voice)
King (voice)
Duke (voice)
Boss (voice)
Mayor Kobayashi (voice)
Major-Domo (voice)
Tracy Walker (voice)
Interpreter Nelson (voice)
Professor Watanabe (voice)
Nutmeg (voice)
Gondo (voice)
Jupiter (voice)
Assistant-Scientist Yoko-ono (voice)
Oracle (voice)
Head Surgeon (voice)
Auntie (voice)
Scrap (voice)
Editor Hiroshi (voice) (as Nijiro Murakami)
Spots (voice)
The Narrator (voice)
Taiko Drummer (voice)
Igor (voice)
Mute Poodle (voice)
News Anchor (voice) (as Yojiro Noda)
Junior Scientist 1 (voice)
Junior Scientist 2 (voice)
Junior Scientist 3 (voice) (as Shota Matsuda)
Junior Scientist 4 / Bartender (voice) (as Ryuhei Matsuda)
Mission Control Drone Pilot (voice)
Mission Control Technician (voice)
Junior Interpreter Ernie (voice)
Punk Girl (voice) (as Eliza Ikeda)
Daily Manifesto Student (voice)
Simul-Translate Machine (voice)
Owl (voice)
Aboriginal Dog (voice)
Peppermint (voice)
Election Night Tabulator (voice) (as Kiyotaka 'Mozu' Mizukoshi)
Surgical Assistant (voice)
Adam (uncredited)