Taylor Kitsch Sam (voice) Jennette McCurdy Sue (voice) Rena Strober Computer Voice (voice) Carla Gugino Catherine (voice) James Woods Victor (voice) Jason Kravits Oscar (voice) Tom Green Okra (voice) Jon Heder Wilmer (voice) Jason Mewes Kit (voice) Jim Breuer Mr.Glump (voice) Phil LaMarr Additional Voices (voice) Lex Lang Ox King (voice) Steve Kramer Zang (voice) Dave B. Mitchell Police01 (voice) Richard Epcar Captain Black (voice) Derek Stephen Prince Clerk (voice) Cassandra Morris Additional Voices (voice) Doug Erholtz Additional Voices (voice) Sandy Fox Additional Voices (voice) Richard Cansino Additional Voices (voice) Phil Morris Additional Voices (voice)