Lurene Tuttle

Ma Barker

Tris Coffin

Arthur Dunlop

Paul Dubov

Alvin Karpis

Nelson Leigh

George Barker

Myrna Dell

Lou

Victor Lundin

Machine Gun Kelly

Don Grady

Herman as a Boy

Roye Baker

Lloyd Barker

Ron Foster

Doc Barker

Michael Smith

Fred - as a Boy

Gary Ammann

Doc - as a Boy

Donald Towers

Lloyd - as a Boy

Don Spruance

Herman

Rex Holman

Lloyd

Eric Morris

Fred

Byron Foulger

Dr. Guelffe

Eric Sinclair

John Dillinger

Robert Kendall

Baby Face Nelson

Irene Windust

Mrs. Khortney

John McNamara

Mr. Khortney

Dan White

Sheriff #2

Owen Bush

Carney

Charles Tannen

Sheriff #1

Riley Hill

Deputy

Dan Riss

Baxter

David Carlile

Avery

Bernard Pludow

Charlie

Paul Power

Minister

George Dockstader

Guard

Wally Rose

Guard

Bill Couch

Guard

William Lon Karn

Boy with basketball

Gil Baumgart

Fingers

Myron Healey

Sioux Falls Bank Robber (uncredited)