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)

Aline Stevens

Mrs. Rita Mefaris (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)