I, Mobster

Robert Strauss

Black Frankie Udino

Celia Lovsky

Mrs. Sante

Lili St. Cyr

Herself, Lili St. Cyr

John Brinkley

Ernie Porter

Grant Withers

Paul Moran

Yvette Vickers

The Blonde

Frank Gerstle

District Attorney

Robert Shayne

Senator

Wally Cassell

Cherry Nose Sirago (adult)

Jeri Southern

Singer

Eddie Baker

Labor Union Boss (uncredited)

Benjie Bancroft

Police Officer (uncredited)

Stephen Chase

Mr. Stephens (uncredited)

George Cisar

Cab Driver (uncredited)

John Dennis

Murder Inc. Man (uncredited)

Charles Evans

Committee Chairman (uncredited)

Thomas Browne Henry

Udino's Attorney (uncredited)

Michael Jeffers

Syndicate Member (uncredited)

Kenner G. Kemp

Nightclub Patron (uncredited)

Harold Miller

Senator at Hearing (uncredited)

Hans Moebus

Party Guest (uncredited)

Brad Morrow

Cherry Nose Sirago (young) (uncredited)

Jack Mylong-Münz

Papa Sante (uncredited)

Ed Nelson

Sid - Henchman (uncredited)

Cosmo Sardo

Johnny (uncredited)

Ron Soble

Al - Henchman (uncredited)

Bert Stevens

Senator at Hearing (uncredited)

Bruno VeSota

Bruno - Nightclub Manager (uncredited)

Frank Wolff

Man (uncredited)