Tim Allen ...  Buzz Lightyear (voice)
Nicole Sullivan ...  Mira Nova (voice)
Larry Miller ...  XR (voice)
Stephen Furst ...  Booster (voice)
Wayne Knight ...  Evil Emperor Zurg (voice)
Adam Carolla ...  Cmdr. Nebula (voice)
Diedrich Bader ...  Warp Darkmatter / Agent Z (voice)
Patrick Warburton ...  LGM's (Little Green Men) (voice) 
Charles Kimbrough ...  Brain Pod (voice)
Cindy Warden ...  Technician, Computer Voice (voice)
Frank Welker ...  Grubs (voice)
Sean Hayes ...  Brain Pod (voice) (as Sean P. Hayes)