After years of investigation, Assistant District Attorney Martin Ferguson has managed to build a solid case against an elusive gangster whose top lieutenant is about to testify.

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

Adelaide Klein
as Olga Kirshen

Don Beddoe
as Thomas O'Hara