Roy Ward Baker (Lloyd Barker)
Donald Towers (Lloyd as a Boy)
Lurene Tuttle (Ma Barker)
Dan White (2nd Sheriff)
Bill Couch, Jr. (Guard)
John McNamara (Mr. Khortney)
Wally Rose
Paul Power (Minister)
George Dockstader
David Carlile (Avery)
Don Grady (Herman as a Boy)
Robert Kendall (Baby Face Nelson)
Eric Morris (Fred Barker)
Charles Tannen (1st Sheriff)
Donald Spruance (Herman Barker)
Owen Bush (Carney)
Tristram Coffin (Arthur Dunlop)
Myrna Dell (Lou)
Paul Dubov (Alvin Karpis)
Ron Foster (Doc Barker)
Byron Foulger (Dr. Guelffe)
Riley Hill (Deputy)
Nelson Leigh (George Barker)
Vic Lundin (Machine Gun Kelly)
Dan Riss (Baxter)
Eric Sinclair (John Dillinger)
Michael Smith (Fred as a Boy)
Irene Windust (Mrs. Khortney)