Credits

Boris Karloff

Baron Boris von Frankenstein (voice)

Allen Swift

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

Gale Garnett

Francesca (voice)

Phyllis Diller

The Monster's Mate (voice)

Ethel Ennis

Title Song Singer (voice)

Killer Joe Piro

Choreographer

Tadahito Mochinaga

Cinematography

Kizo Nagashima

Assistant Director

Jules Bass

Director, Lyricist, Producer

Larry Roemer

Associate Producer

Joseph E. Levine

Executive Producer

Maury Laws

Songs, Music

Jack Davis

Character Designer

Bram Stoker

Characters

H.G. Wells

Characters

Mary Shelley

Characters

Robert Louis Stevenson

Characters

Victor Hugo

Characters

Arthur Rankin, Jr.

Story, Producer

Forrest J. Ackerman

Writer

Len Korobkin

Writer

Harvey Kurtzman

Writer