출연진
Lorna Gray
Dolores Quantero
Kirk Alyn
Cliff Roberts
LeRoy Mason
Carlos Manning
Roy Barcroft
Mel Donovan
Claire Meade
Maria Martinez
Kernan Cripps
Insp. Grogan
Jimmy Ames
Romero (Nightclub Owner) [Chs. 3, 9]
Eddie Parker
George Tomkins
Tom Steele
Kidnapper Norton / Streetsweeper Blake / MineThug Dow / BombThug Lyons [Chs. 2, 5, 7, 10]
Dale Van Sickel
Thug Murphy / Police Officer Angus [Chs. 7, 8] / Pete (Truck Theft Thug / Bar Thug [Chs. 1, 9, 11]
Fred Graham
Rollins - Killer [Ch. 6]
Tom Quinn
R. J. Riggs (Bomb Maker) [Ch. 10]
John Daheim
Morris Kelso (Artist-Thug) [Ch. 11]
Ted Mapes
Ned Gray (Thug) [Ch. 4]
I. Stanford Jolley
Lippy Monroe (Thug) [Ch. 5]
Buddy Roosevelt
Woods Thug Moody / MineThug Eddie / Truck Thug Zarco [Chs. 4, 7, 12]
George Chesebro
Art Warehouse Thug (uncredited)