Richard Widmark

Character: Skip McCoy

Jean Peters

Character: Candy

Thelma Ritter

Character: Moe Williams

Murvyn Vye

Character: Captain Dan Tiger

Richard Kiley

Character: Joey

Willis Bouchey

Character: Zara

Milburn Stone

Character: Detective Winoki

Parley Baer

Character: Headquarters Communist in Chair (uncredited)

Chet Brandenburg

Character: Fight Spectator (uncredited)

Frank Kumagai

Character: Lum (uncredited)

Virginia Carroll

Character: Nurse (uncredited)

Harry Carter

Character: Detective Dietrich (uncredited)

Clancy Cooper

Character: Detective Eddie (uncredited)

Henry Slate

Character: Detective MacGregor (uncredited)

Heinie Conklin

Character: Subway Passenger (uncredited)

George Eldredge

Character: Fenton (uncredited)

John Gallaudet

Character: Detective Lieutenant Campion (uncredited)

Alan Reed

Character: Detective (uncredited)

Robert Haines

Character: Library Worker (uncredited)

Jay Loft-Lyn

Character: Microfilm Library Clerk (uncredited)

Ray Montgomery

Character: Ray, FBI Agent (uncredited)

Jerry O'Sullivan

Character: FBI Agent Enyart (uncredited)

Ray Stevens

Character: FBI Agent (uncredited)

Ralph Moody

Character: Coffin Boat Captain (uncredited)

Roger Moore

Character: Mr. Victor (uncredited)

Vic Perry

Character: Lightning Louie (uncredited)

George E. Stone

Character: Willie, Police Desk Clerk (uncredited)

King Mojave

Character: Elevator Passenger (uncredited)

Harry Tenbrook

Character: Elevator Passenger (uncredited)

Stuart Randall

Character: Police Commissioner (uncredited)

Wilson Wood

Character: Police Driver (uncredited)

Maurice Samuels

Character: Peddler (uncredited)

George Berkeley

Character: Secondary Role (uncredited)