Daughter of Don Q

Thug Murphy / Police Officer Angus [Chs. 7, 8] / Pete (Truck Theft Thug / Bar Thug [Chs. 1, 9, 11]

Rollins - Killer [Ch. 6]

Mel Donovan

Morris Kelso (Artist-Thug) [Ch. 11] (as Johnny Daheim)

Ned Gray (Thug) [Ch. 4]

Art Warehouse Thug (uncredited)

Kidnapper Norton / Streetsweeper Blake / MineThug Dow / BombThug Lyons [Chs. 2, 5, 7, 10]

Lippy Monroe (Thug) [Ch. 5] (as Stanford Jolley)

Cliff Roberts

George Tomkins