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

Wilson Bourg Jr.

Charlie - Sailor (uncredited)

Beverly C. Brown

Dr. Mackey - Board of Health (uncredited)

Lewis Charles

Kochak - Murder Victim (uncredited)

Herman Cottman

Officer Scott - Police Lab (uncredited)

John David

Fruit Salesman (uncredited)

William A. Dean

Cortelyou (uncredited)

Robert Dorsen

Coast Guard Lieutenant (uncredited)

George Ehmig

Kleber - Medical Examiner Technician (uncredited)

H. Waller Fowler Jr.

Mayor Murray (uncredited)

Paul Hostetler

Lt. Paul Gafney M.D. - Public Health Service (uncredited)

Elia Kazan

Cleaver - Mortuary Assistant (uncredited)

Edward Kennedy

Jordan (uncredited)

Mary Liswood

Angie Fitch - Raymond's Wife (uncredited)

Henry Mamet

Anson (uncredited)

Tiger Joe Marsh

Bosun on Nile Queen (uncredited)

Ruth Moore Mathews

Mrs. Dubin (uncredited)

Emile Meyer

Capt. Beauclyde - Master of Nile Queen (uncredited)

Alex Minotis

John Mefaris - Restaurant Owner (uncredited)

Rex Moad

Wynant (uncredited)

Ray Müller

Dubin (uncredited)

Lenka Peterson

Jeanette - Charlie's Girlfriend (uncredited)

Waldo Pitkin

Ben (uncredited)

Tommy Rettig

Tommy Reed (uncredited)

Stanley J. Reyes

Redfield (uncredited)

John Schilleci

Lee (uncredited)

Al Theriot

Al (uncredited)

Guy Thomajan

Poldi - Blackie's Flunky (uncredited)

Arthur Tong

Lascar Boy on Nile Queen (uncredited)

H.T. Tsiang

Cook on Nile Queen (uncredited)

Irvine Vidacovich

Johnston (uncredited)

Juan Villasana

Hotel Proprietor (uncredited)

Pat Walshe

Pat - Newspaper Peddler (uncredited)

Val Winter

Commissioner Dan Quinn (uncredited)

Leo Zinser

Sgt. Phelps (uncredited)

Aline Stevens

Rita Mefaris (uncredited)