Hugh Herbert

Horatio Gillingwater

Patricia Ellis

Lois Gillingwater

Warren Hull

Jerry Wayne

Hobart Cavanaugh

Jacob 'Jake' Buckley

Dorothy Vaughan

Evalina 'Evie' Gillingwater

Clarence Wilson

Jonathan Ramp

Robert Gleckler

Gangster Mugsy O'Bannion - aka Harold McCauley

Mary Treen

Alice Gillingwater

Anne Nagel

Miss Perkins - Ramp's Secretary

Arthur Aylesworth

Justice Felton

Sol Gorss

Jim - Bank Robber

Henry Otho

Lumpy - Bank Robber

Max Wagner

Lester - O'Bannion's Driver

Tom Brower

Sheriff Bert Hanson

Milton Kibbee

Wilbur - Detective

Tom Wilson

Fred - Detective

Dickie Jones

Boy on Streetcar

Hugh Reticker

Art Direction

Terry O. Morse

Editor

George Barnes

Director of Photography

Howard Jackson

Original Music Composer

Russell Saunders

Assistant Director

Hal B. Wallis

Executive Producer

Martin Flavin

Story

Tom Reed

Screenplay

Jack L. Warner

Executive Producer

Frank McDonald

Director

Dalton Trumbo

Screenplay

Bryan Foy

Producer