Whispering Smith
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
Whispering Smith
Robert Preston
Murray Sinclair
Brenda Marshall
Marian Sinclair
Donald Crisp
Barney Rebstock
William Demarest
Bill Dansing
Fay Holden
Emmy Dansing
Murvyn Vye
Blake Barton
Frank Faylen
Whitey Du Sang
John Eldredge
George McCloud
Ward Wood
Leroy Barton
J. Farrell MacDonald
Bill Baggs
Will Wright
Sheriff McSwiggin
Don Barclay
Dr. Sawbuck
Eddy Waller
Conductor
Ashley Cowan
Brakeman
Jimmie Dundee
Karg
Ray Teal
Seagrue
Bob Kortman
Gabby Barton
Eric Alden
Irving Bacon
George Barton
Hank Bell
Danny Borzage
John Bose
George Bruggeman
Paul E. Burns
Nora Bush
Ann Cameron
Noble 'Kid' Chissell
Tom Coleman
Waiter (uncredited)
James Davies
Mike Donovan
Lester Dorr
Woody, Train Brakeman (uncredited)
Clint Dorrington
Tom Fadden
Telegrapher at Coyete Creek (uncredited)
Budd Fine
Terry Frost
Wrecking Crew Member (uncredited)
Gary Gray
Frank Hagney
Frank - Wrecking Crew Member (uncredited)
Earle Hodgins
Perry Ivins
Roberta Jonay
Jack Kenny
Milton Kibbee
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