"Smith is an iron-willed railroad detective. When his friend Murray is fired from the railroad and begins helping Rebstock wreck trains, Smith must go after him. He also seems to have an interest in Murray's wife (and vice versa)."
Alan Ladd
as Whispering Smith
Robert Preston
as Murray Sinclair
Brenda Marshall
as Marian Sinclair
Donald Crisp
as Barney Rebstock
William Demarest
as Bill Dansing
Fay Holden
as Emmy Dansing
Murvyn Vye
as Blake Barton
Frank Faylen
as Whitey Du Sang
John Eldredge
as George McCloud
Ward Wood
as Leroy Barton
J. Farrell MacDonald
as Bill Baggs
Will Wright
as Sheriff McSwiggin
Don Barclay
as Dr. Sawbuck
Eddy Waller
as Conductor
Ashley Cowan
as Brakeman
Jimmie Dundee
as Karg
Ray Teal
as Seagrue
Bob Kortman
as Gabby Barton
Eric Alden
as
Irving Bacon
George Barton
Hank Bell
Danny Borzage
John Bose
George Bruggeman
Paul E. Burns
Nora Bush
Ann Cameron
Noble 'Kid' Chissell
Tom Coleman
as Waiter (uncredited)
James Davies
Mike Donovan
Lester Dorr
as Woody, Train Brakeman (uncredited)
Clint Dorrington
Tom Fadden
as Telegrapher at Coyete Creek (uncredited)
Budd Fine
Terry Frost
as Wrecking Crew Member (uncredited)
Gary Gray
Frank Hagney
as Frank - Wrecking Crew Member (uncredited)
Earle Hodgins
Perry Ivins
Roberta Jonay
Jack Kenny
Milton Kibbee
as Train Engineer (uncredited)
Ethan Laidlaw
Pat Lane
Don Lynch
William Meader
Anton Northpole
Broderick O'Farrell
Ed Randolph
Robert St. Angelo
Chalky Williams
Hank Worden
Fred Zendar
Karl Kamb
Screenplay
Leslie Fenton
Director
Frank H. Spearman
Novel
Frank Butler
Walter H. Tyler
Art Direction
Bertram C. Granger
Set Decoration
Hans Dreier
Sam Comer
Wally Westmore
Makeup Supervisor
Mary Kay Dodson
Costume Design
Francisco Day
Assistant Director
Gene Merritt
Sound Recordist
Natalie Kalmus
Other
Robert Brower
John Cope
Gordon Jennings
Visual Effects
Mel Epstein
Associate Producer
Farciot Edouart
Ray Rennahan
Director of Photography
Archie Marshek
Editor
Adolph Deutsch
Original Music Composer