On screen
Cast
17 credited performers
Lorna Gray
Dolores Quantero
Kirk Alyn
Cliff Roberts
LeRoy Mason
Carlos Manning
Roy Barcroft
Mel Donovan
Artwork unavailable
Claire Meade
Maria Martinez
Kernan Cripps
Insp. Grogan
Artwork unavailable
Jimmy Ames
Romero (Nightclub Owner) [Chs. 3, 9]
Eddie Parker
George Tomkins
Artwork unavailable
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]
Artwork unavailable
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)