Matt Damon
Cale Tucker (voice)
Ron Perlman
Prof. Sam Tucker (voice)
John Leguizamo
Gune (voice)
Charles Rocket
Firrikash (voice)
Bill Pullman
Captain Korso (voice)
Tsai Chin
Old Woman (voice)
Jim Cummings
Chowquin (voice)
Alex D. Linz
Young Cale (voice)
Janeane Garofalo
Stith (voice)
Tone Loc
Tek (voice)
Roger L. Jackson
First alien (voice)
Jim Breuer
The Cook (voice)
Drew Barrymore
Akima (voice)
David L. Lander
Mayor of New Bangkok (voice)
Nathan Lane
Preed (voice)
Crystal Scales
Drifter Girl (voice)
Ken Hudson Campbell
Po (voice)
Chris Scarabosio
Queen Drej (voice)