Doctor X
A wisecracking New York reporter intrudes on a research scientist's quest to unmask The Moon Killer.
Lionel Atwill
Dr. Jerry Xavier
Fay Wray
Joanne Xavier
Lee Tracy
Lee Taylor
Preston Foster
Dr. Wells
John Wray
Dr. Haines
Harry Beresford
Dr. Duke
Arthur Edmund Carewe
Dr. Rowitz
Leila Bennett
Mamie
Robert Warwick
Commissioner Stevens
George Rosener
Otto, Dr. Xavier's Butler
Willard Robertson
Detective O'Halloran
Thomas E. Jackson
Daily World Editor
Harry Holman
Mike, Waterfront Policeman
Mae Busch
Cathouse Madame
Tom Dugan
Sheriff
Raoul Freeman
Morgue Detective (Uncredited)
Selmer Jackson
Willard Keefe, Daily World Night Editor (Uncredited)
Charles McMurphy
Detective at Headquarters (Uncredited)
Ky Robinson
Morgue Detective (Uncredited)
Louise Beavers
Louise (Uncredited)
Robert Tasker
Screenplay
Ray Rennahan
Director of Photography
Darryl F. Zanuck
Executive Producer
George Rosener
Screenplay
George Amy
Editor
Earl Baldwin
Screenplay
Ruth Pursley
Hairstylist
Hal B. Wallis
Executive Producer
Anton Grot
Art Direction
Michael Curtiz
Director
Perc Westmore
Makeup Artist
Ray Romero
Makeup Artist
Bernhard Kaun
Original Music Composer
Richard Towers
Director of Photography
William Forsyth
Casting Assistant
Ernest Haller
Camera Operator
Natalie Kalmus
Color Designer
Robert B. Lee
Sound Recordist
Carl E. Guthrie
Camera Operator
Al Alleborn
Assistant Director
Thad Brooks Jr.
Assistant Camera
William Maybery
Casting Assistant
Rufus Le Maire
Casting
Fred Jackman Jr.
Special Effects
Ellsworth Fredericks
Camera Operator
William Williams
Camera Operator
W. Howard Greene
Camera Operator
Allen C. Miller
Theatre Play
Marshall Hageman
Assistant Director
Owen Crompton
Grip
Herbert Plews
Props
Howard Warren Comstock
Theatre Play
Floyd Lee
Assistant Camera
Leo F. Forbstein
Conductor
Scotty Welbourne
Still Photographer