The Undercover Man
Frank Warren is a treasury agent assigned to put an end to the activities of a powerful mob crime boss. Frank works undercover, posing as a criminal to seek information, but is frustrated when all he finds are terrified witnesses and corrupt police officers.
Glenn Ford
Frank Warren
Nina Foch
Judith Warren
James Whitmore
George Pappas
Barry Kelley
Attorney Edward J. O'Rourke
Frank Tweddell
Inspector Herzog
Howard St. John
Joseph S. Horan
John F. Hamilton
Police Desk Sergeant Shannon
Leo Penn
Sidney Gordon
Joan Lazer
Rosa Rocco
Esther Minciotti
Maria Rocco
Angela Clarke
Theresa Rocco
Anthony Caruso
Salvatore Rocco
Robert Osterloh
Emanuel 'Manny' Zanger
Kay Medford
Gladys LaVerne
Patricia Barry
Muriel Gordon
David Bauer
Stanley Weinburg
Richard Bartell
Bailiff
Peter Brocco
Johnny (uncredited)
John Butler
Grocer / Bookie
Wheaton Chambers
Parker's Secretary
Marcella Cisney
Alice Ferguson
Michael Cisney
Michael Cisney
Tom Coleman
Plainclothesman (uncredited)
Roy Darmour
Hoodlum
George Douglas
District Attorney
Jim Drum
Policeman
Sidney Dubin
Harris
Ben Erway
Court Clerk
Virginia Farmer
Mrs. Weisner
John George
Onlooker at Murder Scene (uncredited)
Everett Glass
Judge Allen F. Parker (uncredited)
Jack Gordon
Hoodlum (uncredited)
Sol Gorss
Joseph Clark - Hoodlum (uncredited)
Kit Guard
Passerby
Robert Haines
Coroner's Office Phone Clerk
Tom Hanlon
Newsreel Announcer
John Ireland
Narrator (voice) (uncredited)
Ted Jordan
Hoodlum (uncredited)
Paul Kruger
Malibu Policeman
Pat Lane
Policeman
Robert Malcolm
Malibu Policeman
Cy Malis
Hoodlum
Joe Mantell
Newsboy (uncredited)
Paul Marion
Hoodlum
Irene Martin
Allen Mathews
Policeman
Edwin Max
Horse Parlor Manager
Frank Mayo
Jury Foreman
Daniel Meyers
Silvio Minciotti
Vendor
Al Murphy
Billy Nelson
Horse Parlor Bouncer (uncredited)
Brian O'Hara
Policeman
Joe Palma
Policeman
Franklin Parker
Rose Plumer
Rocco Tenement Resident
Ed Randolph
Stella LeSaint
William Rhinehart
Gunman
Wally Rose
Hoodlum
Cosmo Sardo
Man Departing Train
Bernard Sell
Larry Steers
Man in Movie Audience
Bert Stevens
Plainclothesman
Bill Stubbs
Gambler
Glen Thompson
Hoodlum
Arthur Tovey
Federal Agent Guarding Witnesses (uncredited)
William Vedder
Druggist
Peter Virgo
Cigar-Store Owner / Bookie
Ralph Volkie
Big Man
Helen Wallace
Mrs. O'Rourke (uncredited)
Harlan Warde
Hoodlum
Than Wyenn
Cabbie
Esther Zeitlin
Jack Rubin
Screenplay
Sydney Boehm
Screenplay
Joseph H. Lewis
Director
Frank J. Wilson
Writer
William Kiernan
Set Decoration
Greta Ardine
Hairstylist
Al Clark
Editor
Robert J. Schiffer
Makeup Artist
Jean Louis
Costume Design
Walter Holscher
Art Direction
George Duning
Music
Jack A. Goodrich
Sound Engineer
Wilbur McGaugh
Assistant Director
Burnett Guffey
Director of Photography
Robert Rossen
Producer
Jean Louis
Costume Designer
George Duning
Music Director