Humphrey Bogart
ADA Martin Ferguson

Zero Mostel
'Big Babe' Lazich

Ted de Corsia
Joseph 'Joe' Rico

Everett Sloane
Albert Mendoza

Roy Roberts
Captain Frank Nelson

Michael Tolan
James 'Duke' Malloy

King Donovan
Sergeant Whitlow

Bob Steele
Herman

Adelaide Klein
Olga Kirshen

Don Beddoe
Thomas O'Hara

Tito Vuolo
Tony Vetto

John Kellogg
Vince

Jack Lambert
'Philadelphia' Tom Zaca

Harry Wilson
B. J. (uncredited)

Dan Riss
Mayor (uncredited)

Howard M. Mitchell
Fire Chief (uncredited)

Greta Granstedt
Mrs. Lazich (uncredited)

Danny Dayton
Digger (uncredited)

Susan Cabot
Nina Lombardo (uncredited)

Mario Siletti
Louis the Barber (uncredited)

Edwin Max
'Sad Eyes' (uncredited)

Chet Brandenburg

Helen Brown

Steve Carruthers

Sayre Dearing

Ralph Dunn

Eula Guy

Creighton Hale

Patricia Hayes

Fred Kelsey

Mike Lally

John Maxwell

Philo McCullough

David McMahon

George Meader

Jay Morley

Jack Mower

Paul Panzer

Tom Wilson