Richard Widmark

Skip McCoy

Jean Peters

Candy

Thelma Ritter

Moe Williams

Murvyn Vye

Captain Dan Tiger

Richard Kiley

Joey

Willis Bouchey

Zara

Milburn Stone

Detective Winoki

Parley Baer

Headquarters Communist in Chair (uncredited)

Chet Brandenburg

Fight Spectator (uncredited)

Frank Kumagai

Lum (uncredited)

Virginia Carroll

Nurse (uncredited)

Harry Carter

Detective Dietrich (uncredited)

Clancy Cooper

Detective Eddie (uncredited)

Henry Slate

Detective MacGregor (uncredited)

Heinie Conklin

Subway Passenger (uncredited)

George Eldredge

Fenton (uncredited)

John Gallaudet

Detective Lieutenant Campion (uncredited)

Alan Reed

Detective (uncredited)

Robert Haines

Library Worker (uncredited)

Jay Loft-Lyn

Microfilm Library Clerk (uncredited)

Ray Montgomery

Ray, FBI Agent (uncredited)

Jerry O'Sullivan

FBI Agent Enyart (uncredited)

Ray Stevens

FBI Agent (uncredited)

Ralph Moody

Coffin Boat Captain (uncredited)

Roger Moore

Mr. Victor (uncredited)

Vic Perry

Lightning Louie (uncredited)

George E. Stone

Willie, Police Desk Clerk (uncredited)

King Mojave

Elevator Passenger (uncredited)

Harry Tenbrook

Elevator Passenger (uncredited)

Stuart Randall

Police Commissioner (uncredited)

Wilson Wood

Police Driver (uncredited)

Maurice Samuels

Peddler (uncredited)

George Berkeley

Secondary Role (uncredited)