Characters played by Richard Widmark
Skip McCoy
Characters played by Jean Peters
Candy
Characters played by Thelma Ritter
Moe Williams
Characters played by Murvyn Vye
Police Captain Dan Tiger
Characters played by Richard Kiley
Joey
Characters played by Willis Bouchey
Zara
Characters played by Milburn Stone
Detective Winoki
Characters played by Parley Baer
Headquarters Communist in Chair
Characters played by George Berkeley
Undetermined Secondary Role
Characters played by Chet Brandenburg
Fight Spectator
Characters played by Virginia Carroll
Nurse
Characters played by Harry Carter
Detective Dietrich
Characters played by Heinie Conklin
Subway Passenger
Characters played by Clancy Cooper
Detective Eddie
Characters played by George Eldredge
Fenton
Characters played by John Gallaudet
Detective Lt. Campion
Characters played by Robert Haines
Library Worker
Characters played by Frank Kumagai
Lum
Characters played by Jay Loft-Lynn
Microfilm Library Clerk
Characters played by King Mojave
Elevator Passenger
Characters played by Ray Montgomery
Ray - FBI Agent
Characters played by Ralph Moody
Coffin Boat Captain
Characters played by Roger Moore
Mr. Victor
Characters played by Jerry O'Sullivan
FBI Agent Enyart
Characters played by Vic Perry
Lightning Louie - aka Godkin
Characters played by Stuart Randall
Police Commissioner
Characters played by Alan Reed
Detective
Characters played by Maurice Samuels
Peddler
Characters played by Henry Slate
Detective MacGregor
Characters played by Ray Stevens
FBI Agent
Characters played by George E. Stone
Willie - Police Desk Clerk
Characters played by Harry Tenbrook
Elevator Passenger
Characters played by Wilson Wood
Police Driver