Humphrey Bogart

as ADA Martin Ferguson

Zero Mostel

as 'Big Babe' Lazich

Ted de Corsia

as Joseph 'Joe' Rico

Everett Sloane

as Albert Mendoza

Roy Roberts

as Captain Frank Nelson

Michael Tolan

as James 'Duke' Malloy

King Donovan

as Sergeant Whitlow

Bob Steele

as Herman