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]