Richard Widmark
Skip McCoy
Thelma Ritter
Moe Williams
Murvyn Vye
Captain Dan Tiger
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)