Tim Allen

Buzz Lightyear (voice)

Nicole Sullivan

Mira Nova (voice)

Stephen Furst

Booster Muchapper (voice)

Larry Miller

XR (voice)

Adam Carolla

Commander Nebula (voice)

Patrick Warburton

Little Green Men (voice)

Wayne Knight

Evil Emperor Zurg (voice)

Diedrich Bader

Warp Darkmatter / Agent Z (voice)

Kevin Michael Richardson

Space Ranger (voice)

Charles Kimbrough

Brain Pod #29 / Rhizomian Man (voice)

Cindy Warden

Technician / Computer Voice

Frank Welker

Grubs / Self Destruct / Ranger #1 / Cadet Flam (voice)

Sean Hayes

Brain Pod #13 (voice)

Jennifer Bailey

Rhizomian Woman (voice)

Jim Hanks

Sheriff Woody (voice)

Wallace Shawn

Rex (voice)

Andrew Stanton

Hamm (voice)

R. Lee Ermey

Sarge (voice)

Joe Ranft

Wheezy (voice)

Jeff Pidgeon

Aliens (voice)