'One Round' Jack Sander
Carl Brisson
Mabel
Lillian Hall-Davis
Bob Corby
Ian Hunter
The Promoter
Forrester Harvey
The Showman
Harry Terry
Jack's Trainer
Gordon Harker
Fortune Teller (uncredited)
Clare Greet
Spectator (uncredited)
Tom Helmore
Man-Dipping Attraction Worker (uncredited)
Alfred Hitchcock
Writer
Alma Reville
Director
Producer
John Maxwell
Art Direction
C. Wilfred Arnold
Director of Photography
Jack E. Cox
Assistant Director
Frank Mills
Matte Painter
W. Percy Day