Baron Boris von Frankenstein (voice)

Boris Karloff

Acting

Felix Flankin / Yetch / Dracula / Invisible Man / Dr. Jekyll / Mr. Hyde / Additional Voices

Allen Swift

Acting

Francesca (voice)

Gale Garnett

Acting

The Monster's Mate (voice)

Phyllis Diller

Acting

Title Song Singer (voice)

Ethel Ennis

Acting