Richard Widmark as Skip McCoy

Jean Peters as Candy

Thelma Ritter as Moe Williams

Murvyn Vye as Captain Dan Tiger

Richard Kiley as Joey

Willis Bouchey as Zara

Milburn Stone as Detective Winoki

Parley Baer as Headquarters Communist in Chair (uncredited)

Chet Brandenburg as Fight Spectator (uncredited)

Frank Kumagai as Lum (uncredited)

Virginia Carroll as Nurse (uncredited)

Harry Carter as Detective Dietrich (uncredited)

Clancy Cooper as Detective Eddie (uncredited)

Henry Slate as Detective MacGregor (uncredited)

Heinie Conklin as Subway Passenger (uncredited)

George Eldredge as Fenton (uncredited)

John Gallaudet as Detective Lieutenant Campion (uncredited)

Alan Reed as Detective (uncredited)

Robert Haines as Library Worker (uncredited)

Jay Loft-Lyn as Microfilm Library Clerk (uncredited)

Ray Montgomery as Ray, FBI Agent (uncredited)

Jerry O'Sullivan as FBI Agent Enyart (uncredited)

Ray Stevens as FBI Agent (uncredited)

Ralph Moody as Coffin Boat Captain (uncredited)

Roger Moore as Mr. Victor (uncredited)

Vic Perry as Lightning Louie (uncredited)

George E. Stone as Willie, Police Desk Clerk (uncredited)

King Mojave as Elevator Passenger (uncredited)

Harry Tenbrook as Elevator Passenger (uncredited)

Stuart Randall as Police Commissioner (uncredited)

Wilson Wood as Police Driver (uncredited)

Maurice Samuels as Peddler (uncredited)

George Berkeley as Secondary Role (uncredited)