George O'Hanlon
George Jetson (voice)
Penny Singleton
Jane Jetson (voice)
Daws Butler
Elroy Jetson (voice)
Janet Waldo
Judy Jetson (voice)
Jean Vander Pyl
Rosie (voice)
Don Messick
Astro (voice)
Mel Blanc
Cosmo S. Spacely (voice)
Frank Welker
Orbitty (voice)
Howard Morris
Harlan (voice)
Allan Melvin
Mr. Spendwell / Construction Worker (voice)
John Stephenson
Dr. Scarem (voice)
Barry Gordon
Mechanic (voice)
Hal Smith
Beta Ranch Manager (voice)
Joan Gardner
Helen (voice) (uncredited)
Selma Diamond
Di-Di (voice)
Frank Nelson
Robot Dance Instructor (voice)
Sonny Melendrez
Mr. Rocket (voice)
Brenda Vaccaro
Di-Di (voice)
Foster Brooks
(voice)
Paul Winchell
Dr. Input (voice)
B.J. Ward
Robot / Wicked Wrench of the West (voice)
Bea Benaderet
Emily Scopes / Celeste Skyler (voice)
Didi Conn
Cousin Melissa (voice)
Dave Coulier
Robot Umpire (voice)
René Auberjonois
(voice)
Phil Hartman
School Patrol Robots / Executive Vice President (voice)
Nancy Cartwright
Asteroid Cogswell (voice)
William Windom
Saturn Cyclops (voice)
Rob Paulsen
Jacque Nova / Hall Monitor (voice)
Peter Cullen
Jupiter Juggernaut (voice)
June Foray
Gas Station Woman / Clerk (voice)
Gregg Berger
Curly Quasar (voice)
Lauri Johnson
Mrs. Meltdown (voice)
William Woodson
Narrator (voice)
Lorenzo Music
Florist (voice)
Brian Cummings
Marcia's Father / DJ (voice)
Dan Gilvezan
Randy (voice)
Wink Martindale
Wink Martiandale (voice)
