Bud Abbott

Slim

Lou Costello

Tubby

Boris Karloff

Dr. Henry Jekyll / Mr. Hyde

Craig Stevens

Bruce Adams

Helen Westcott

Vicky Edwards

Reginald Denny

Inspector

John Dierkes

Batley

Eddie Parker

Mr. Hyde (uncredited)

Patti McKaye

Can-can dancer

Betty Tyler

Can-can dancer

Lucille Lamarr

Can-can dancer

Dante De Paolo

Specialty dancer

Carmen De Lavallade

Javanese dancer

Maisay Kawasuma

Javanese dancer

Henry Coden

Javanese actor

Marjorie Bennett

Militant woman

Isabelle Dwan

Mrs. Penprase

James Fairfax

Mr. Penprase

Harry Wilson

Man Asking for Match

Harry Cording

Rough Character in the Park