Kadro (20)
George O'HanlonGeorge Jetson (voice)
Penny SingletonJane Jetson (voice)
Daws ButlerElroy Jetson (voice)
Janet WaldoJudy Jetson (voice)
Jean Vander PylRosie (voice)
Don MessickAstro (voice)
Mel BlancCosmo S. Spacely (voice)
Frank WelkerOrbitty (voice)
Foster Brooks(voice)
Howard MorrisHarlan (voice)
Allan MelvinMr. Spendwell / Construction Worker (voice)Shepard MenkenNimbly (voice)
Dick Beals(voice)
John StephensonDr. Scarem (voice)
Barry GordonSneak (voice)
Hal Smith(voice)
Joan GardnerHelen (voice) (uncredited)
Selma DiamondDi-Di (voice)
Frank NelsonRobot Dance Instructor (voice)
Sonny MelendrezMr. Rocket (voice)