Richard Webb as Lane Carson

Aline Towne as Carol Richards

Stanley Price as The Phantom Ruler

Lane Bradford as Burton

John Crawford as Harris

George Meeker as "Harry Long"

Edward Keane as Warren Madison

Dale Van Sickel as Otto Wagner, aka "Frank Martin"

Douglas Evans as "James Hunter"

John Hamilton as "Henry Miller"

Roy Gordon as Mr. Moore

Harold Goodwin as Kirk - Body-Shop Henchman [Ch.11] (uncredited)

Marshall Reed as Roadblock Cop [Ch. 1, 7]

David Sharpe as Garage Watchman [Ch. 3] / Armored Car Guard [Ch. 11]

George Magrill as Henchman Sam [Ch. 4-5]

Guy Teague as Decoy & Dumptruck Henchman [Ch. 5, 7]

Tom Steele as Henchman Bill 'Mack' Haines [Chapters 5, 10]

Eddie Parker as Barn Henchman Stoner [Ch.8]

Keith Richards as Doctor [Ch. 12]

Duke Taylor as Second Roadblock Cop [Ch. 1 bit]

Mark Strong as Bank Watchman [Ch.1 bit]

Bert LeBaron as Crooked Watchman [Ch. 2 bit]

Frank O'Connor as Chemical Truck Cop [Ch. 5 bit]

Forrest Burns as Watchman Joe [Ch. 5 bit]

Carey Loftin as Dynamite Henchman Dirk [Ch. 6 bit]

Tom Monroe as Cave Policeman [Ch. 7 bit]

Howard M. Mitchell as Second Garage Watchman [Ch. 7 bit]

Charles Sullivan as Squadcar Cop [Ch. 7 bit]

George Volk as Second Armored Car Guard [Ch. 11 bit]