Cast
Bud Abbott
Slim
Lou Costello
Tubby
Boris Karloff
Dr. Henry Jekyll / Mr. Hyde
Craig Stevens
Bruce Adams
Helen Westcott
(I)
(1928–1998)
Vicky Edwards
Reginald Denny
Inspector
John Dierkes
Batley
Eddie Parker
Mr. Hyde (uncredited)
Betty Tyler
Can-can dancer
Carmen De Lavallade
Javanese dancer
Marjorie Bennett
(1896–1982)
Militant woman
James Fairfax
Mr. Penprase
Harry Wilson
Man Asking for Match
Harry Cording
Rough Character in the Park
Directing
Charles Lamont
Director
Writing
Robert Louis Stevenson
Novel
John Grant
Screenplay
Lee Loeb
Screenplay
Grant Garett
Story
Art
Eric Orbom
Art Direction
Bernard Herzbrun
Art Direction
Russell A. Gausman
Set Decoration
Camera
George Robinson
Director of Photography
Production
Howard Christie
Producer
Costume & Make-Up
Joan St. Oegger
Hairstylist
Rosemary Odell
Costume Design
Jack Kevan
Makeup Artist
Bud Westmore
Makeup Department Head
Abe Haberman
Makeup Artist
Ray Romero
Makeup Artist
Editing
Russell F. Schoengarth
Editor