"A federal agent infiltrates a crime syndicate."
Howard Duff
as George Morton
Shelley Winters
as Terry
Dan Duryea
as Johnny Evans
Tony Curtis
as Joey Hyatt (as Anthony Curtis)
John McIntire
as Nick Avery
Gar Moore
as Sam Harrison
Leif Erickson
as Pringle
Barry Kelley
as William McCandles
Hugh Reilly
as Charlie
Wally Maher
as T.H. Benson
Patricia Alphin
as McCandle's Secretary (uncredited)
Gregg Barton
as Treasury Man (uncredited)
Mary Bayless
as Ranch Guest (uncredited)
Eumenio Blanco
as Pallbearer (uncredited)
Tex Brodus
as Nightclub Patron (uncredited)
James Conaty
as Courtroom Spectator (uncredited)
Oliver Cross
Dulcie Day
as Train Passenger (uncredited)
Pilar Del Rey
as Mexican Girl (uncredited)
Leslie Denison
as Canadian Undercover Man (uncredited)
Watson Downs
as Watchman (uncredited)
Charles Drake
as Hotel Clerk (uncredited)
Harry Evans
as Federal Judge (uncredited)
Al Ferguson
as Porter (uncredited)
Sam Finn
George Ford
as Joe - The Bartender (uncredited)
Alan Foster
as Informer (uncredited)
Robert Foulk
as Pete (uncredited)
Nacho Galindo
as Señor Martinez (uncredited)
Chuck Hamilton
as Prison Guard (uncredited)
Edwin Max
as Pete Carter (uncredited)
Kenneth Patterson
as Ray Dallas (uncredited)
Robert L. Richards
Screenplay
Maury Gertsman
Director of Photography
Ted J. Kent
Editor
Aaron Rosenberg
Producer
Henry Jordan
Story
William Castle
Director
Orry-Kelly
Costume Design
Leslie I. Carey
Sound
Emrich Nicholson
Art Direction
Russell A. Gausman
Set Decoration
Bud Westmore
Makeup Artist
Bernard Herzbrun
Joan St. Oegger
Hairstylist
Richard DeWeese
John P. Austin
David S. Horsley
Visual Effects
Dewey Starkey
Production Manager
Connie Earl
Script Supervisor
Jesse Hibbs
Assistant Director
Leith Stevens
Music
Milton Schwarzwald
Original Music Composer
Arnold Schwarzwald
Miklós Rózsa
Special Effects
Gordon McLean
Frank Skinner
Music Director
Marshall Green
Frederick Herbert
Harry Davis
Camera Operator
Hans J. Salter
Glenn Adams
Still Photographer
