Richard Widmark

Lt. Cmdr. Clinton 'Clint' Reed M.D.

Paul Douglas

Capt. Tom Warren

Barbara Bel Geddes

Nancy Reed

Jack Palance

Blackie

Zero Mostel

Raymond Fitch

Dan Riss

Neff - Newspaper Reporter

Tommy Cook

Vince Poldi - Younger Brother

Lewis Charles

Kochak - Murder Victim (uncredited)

Elia Kazan

Cleaver - Mortuary Assistant (uncredited)

Emile Meyer

Capt. Beauclyde - Master of Nile Queen (uncredited)

Alex Minotis

John Mefaris - Restaurant Owner (uncredited)

Lenka Peterson

Jeanette - Charlie's Girlfriend (uncredited)

Tommy Rettig

Tommy Reed (uncredited)

Guy Thomajan

Poldi - Blackie's Flunky (uncredited)