George Jetson (voice)

George O'Hanlon

Jane Jetson (voice)

Penny Singleton

Elroy Jetson / Veterinarian (voice)

Daws Butler

Judy Jetson (voice)

Janet Waldo

Astro / R.U.D.I. / Ghost of Christmas Past (voice)

Don Messick

Rosie the Robot (voice)

Jean Vander Pyl

Cosmo S. Spacely (voice)

Mel Blanc

Orbitty / Young Mr. Spacely / Teenage Mr. Spacely (voice)

Frank Welker

Jacob Marsley / Ghost of Christmas Present (voice)

Allan Melvin

Director

Arthur Davis