Slim
Bud Abbott
Tubby
Lou Costello
Can-can dancer
Lucille Lamarr
Specialty dancer
Dante De Paolo
Javanese dancer
Carmen De Lavallade
Maisay Kawasuma
Javanese actor
Henry Coden
Militant woman
Marjorie Bennett
Mrs. Penprase
Isabelle Dwan
Mr. Penprase
James Fairfax
Man Asking for Match
Harry Wilson
Rough Character in the Park
Harry Cording
Dr. Henry Jekyll / Mr. Hyde
Boris Karloff
Bruce Adams
Craig Stevens
Vicky Edwards
Helen Westcott
Inspector
Reginald Denny
Batley
John Dierkes
Mr. Hyde (uncredited)
Eddie Parker
Patti McKaye
Betty Tyler
Makeup Department Head
Bud Westmore
Director
Charles Lamont
Novel
Robert Louis Stevenson
Makeup Artist
Jack Kevan
Set Decoration
Russell A. Gausman
Screenplay
Lee Loeb
John Grant
Director of Photography
George Robinson
Costume Design
Rosemary Odell
Art Direction
Bernard Herzbrun
Hairstylist
Joan St. Oegger
Producer
Howard Christie
Editor
Russell F. Schoengarth
Eric Orbom
Abe Haberman
Story
Grant Garett
Sid Fields
Ray Romero