Boris Karloff
Baron Boris von Frankenstein (voice)
On the Isle of Evil, Baron Boris von Frankenstein reveals his imminent retirement and that he has refined the secret of total destruction, only to be upset when the other monsters try to steal the secret and kill his nephew, Felix Flanken.
Baron Boris von Frankenstein (voice)
Felix Flankin / Yetch / Dracula / Invisible Man / Dr. Jekyll / Mr. Hyde / Additional Voices
Francesca (voice)
The Monster's Mate (voice)
Title Song Singer (voice)
Associate Producer
Assistant Director
Songs
Character Designer
Characters
Characters
Characters
Characters
Characters
Director / Producer / Lyricist
Writer
Writer
Writer
Executive Producer
Producer / Story
