Patrick Warburton
Buzz Lightyear (voice) (62 eps)
Nicole Sullivan
Princess Mira Nova (voice) (62 eps)
Stephen Furst
Booster (voice) (62 eps)
Larry Miller
XR (voice) (38 eps)
Neil Flynn
XR (voice) (23 eps)
Frank Welker
Grubs (voice) (22 eps)
Wayne Knight
Emperor Zurg (voice) (21 eps)
Kevin Michael Richardson
Tremendor (voice) (14 eps)
Adam Carolla
Commander Nebula (voice) (12 eps)
Corey Burton
Brent Starkisser (voice) (9 eps)
Dan Castellaneta
Mr. Zoop / Alnip (voice) (8 eps)
Diedrich Bader
Warp Darkmatter (voice) (8 eps)
Roz Ryan
President (voice) (7 eps)
Paul Rugg
Ed (voice) (7 eps)
Kath Soucie
Kids (voice) (6 eps)
Gary Owens
Opening Narration (voice) (uncredited) (6 eps)
Rob Paulsen
Fop Doppler (voice) (6 eps)
Brad Garrett
Torque (voice) (5 eps)
Bobcat Goldthwait
XL (voice) (5 eps)
Craig Ferguson
NOS-4-A2 (voice) (5 eps)
John O'Hurley
King Nova (voice) (5 eps)
Jon Favreau
Crumford Lorak (voice) (5 eps)
Phil LaMarr
Rocket Crocket (voice) (5 eps)
Kerri Kenney
Gravatina (voice) (5 eps)
Tress MacNeille
Brain Pod #94 / Kids (voice) (5 eps)
Jess Harnell
Clay (voice) (4 eps)
Charles Fleischer
Monumentus (voice) (4 eps)
John Kassir
Marl (voice) (4 eps)
Linda Hamilton
Dr. Furbanna (voice) (3 eps)
French Stewart
Rentwhistle Swack (voice) (3 eps)
Conchata Ferrell
Ma (voice) (3 eps)
Jim Cummings
Security Computer / Tough Prisoner (voice) (3 eps)
Fred Willard
Pa (voice) (3 eps)
Grey DeLisle
Mom (voice) (3 eps)
Stephen Root
Sheriff (voice) (3 eps)
Russi Taylor
Becky (voice) (3 eps)
Barney Martin
Ambassador Major (voice) (2 eps)
Jonathan Harris
Era (voice) (2 eps)
Bill Mumy
Eon (voice) (2 eps)
Mitchell Whitfield
Klerm (voice) (2 eps)
Peter MacNicol
Major (voice) (2 eps)
Joel Murray
Triffid (voice) (2 eps)
David Warner
Lord Angstrom (voice) (2 eps)
Tony Jay
Dr. Animus (voice) (2 eps)
Jeff Bennett
Brain Pod #18 / Brain Pod #81 / Dreadnaught Computer (voice) (2 eps)
Steve Hytner
Wirewolf / Ty (voice) (2 eps)
Norm Crosby
Mr. Hayman (voice) (2 eps)
Clancy Brown
Tough (voice) (2 eps)
Max Brooks
Tech #2 / Ranger #2 (voice) (2 eps)
Roger Rose
Villager #3 (voice) (2 eps)
Wallace Langham
Care-bots (voice) (2 eps)
Ryan Stiles
Spyro von Madman (voice) (1 eps)
Mark Hamill
Flint (voice) (1 eps)
Kelly McGillis
Gorgeous Woman (voice) (1 eps)
Jason Marsden
Flash Flemming (voice) (1 eps)
Ed Asner
Fixer (voice) (1 eps)
Billy West
Voice (voice) (1 eps)
Tom Kane
Soldier / Tech (voice) (1 eps)
Clyde Kusatsu
Warden Yung (voice) (1 eps)
Stephen Tobolowsky
Gil (voice) (1 eps)
Brian Doyle-Murray
Panchax (voice) (1 eps)
Harvey Korman
Gularis (voice) (1 eps)
Dawnn Lewis
Mary (voice) (1 eps)
David Alan Grier
Tubunch (voice) (1 eps)
April Winchell
Pwerta (voice) (1 eps)
Mary Kay Bergman
Alien Mom / Alien Kid (voice) (1 eps)
Tom Wilson
Buster (voice) (1 eps)
Nikki Cox
Petra (voice) (1 eps)
Michael Showalter
Plasma Boy (voice) (1 eps)
Joe Alaskey
Soda Vendbot / Newspaper Vendbot (voice) (1 eps)
Cree Summer
Savy SL2 (voice) (1 eps)
Tino Insana
Samsa (voice) (1 eps)
Nichelle Nichols
Chief (voice) (1 eps)
David James Elliott
Romac (voice) (1 eps)
Jeremy Piven
Brain Pod #57 (voice) (1 eps)
Charles Napier
Wild Bill Cooley (voice) (1 eps)
Ron Perlman
Leader (voice) (1 eps)
Bronson Pinchot
Shakey / Science (voice) (1 eps)
Tara Strong
Bonnie (voice) (1 eps)
Mills Lane
Judge (voice) (1 eps)
Ricardo Montalban
Vartkes (voice) (1 eps)
Haley Joel Osment
Myka (voice) (1 eps)
Park Overall
Zoey / Female Ranger (voice) (1 eps)
Sam Gifaldi
Dyb (voice) (1 eps)
Robert Picardo
Professor Reddschift (voice) (1 eps)
Eric Idle
Guzelian (voice) (1 eps)
Maurice LaMarche
Ambassador (voice) (1 eps)
Jennifer York
Traffic Reporter (voice) (1 eps)
Earl Boen
Nick (voice) (1 eps)
Joy Behar
42 (voice) (1 eps)