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)

Kevin Michael Richardson ...  Space Ranger (voice)
Charles Kimbrough ...  Brain Pod #29 (voice)
Cindy Warden ...  Technician, Computer Voice (voice)
Frank Welker ...  Grubs, Self Destruct, Ranger #1, Rhizomian Man, and Cadet Flarn (voice)

Sean Hayes ...  Brain Pod #13 (voice) (as Sean P. Hayes)
Jennifer Bailey ...  Rhizomian Woman (voice)

Andrew Stanton ...  Hamm (voice)

Jim Hanks ...  Woody (voice)

R. Lee Ermey ...  Sarge (voice)
Wallace Shawn ...  Rex (voice)
Joe Ranft ...  Wheezy (voice)