Lurene Tuttle

Character: Ma Barker

Tristram Coffin

Character: Arthur Dunlop

Paul Dubov

Character: Alvin Karpis

Nelson Leigh

Character: George Barker

Myrna Dell

Character: Lou

Victor Lundin

Character: Machine Gun Kelly

Don Grady

Character: Herman as a Boy

Roye Baker

Character: Lloyd Barker

Ron Foster

Character: Doc Barker

Michael Smith

Character: Fred - as a Boy

Gary Ammann

Character: Doc - as a Boy

Donald Towers

Character: Lloyd - as a Boy

Don Spruance

Character: Herman

Rex Holman

Character: Lloyd

Eric Morris

Character: Fred

Byron Foulger

Character: Dr. Guelffe

Eric Sinclair

Character: John Dillinger

Robert Kendall

Character: Baby Face Nelson

Irene Windust

Character: Mrs. Khortney

John McNamara

Character: Mr. Khortney

Dan White

Character: Sheriff #2

Owen Bush

Character: Carney

Charles Tannen

Character: Sheriff #1

Riley Hill

Character: Deputy

Dan Riss

Character: Baxter

David Carlile

Character: Avery

Bernard Pludow

Character: Charlie

Paul Power

Character: Minister

George Dockstader

Character: Guard

Wally Rose

Character: Guard

Bill Couch

Character: Guard

William Lon Karn

Character: Boy with basketball

Gil Baumgart

Character: Fingers

Myron Healey

Character: Sioux Falls Bank Robber (uncredited)