Jonathan Harris
Dr. Zachary Smith (voice)
Sherry Alberoni
Deanna Carmichael (voice)
Michael Bell
Craig Robinson (voice)
Don Messick
The Robot / Brack / Narrator (voice)
Vincent Van Patten
Linc Robinson (voice)
Sidney Miller
Lar / Tyrano Twin One (voice)
Ralph James
Tyrano Twin Two (voice)
