Man-woman team of investigators uncover a gang whose mad scientist leader has developed an invisibility chemical and plans to build a mercenary army of invisible men.
Lane Carson
Carol Richards
The Phantom Ruler
Burton
Harris
"Harry Long"
Warren Madison
Otto Wagner, aka "Frank Martin"
"James Hunter"
"Henry Miller"
Mr. Moore
Kirk - Body-Shop Henchman [Ch.11] (uncredited)
Roadblock Cop [Ch. 1, 7]
Garage Watchman [Ch. 3] / Armored Car Guard [Ch. 11]
Henchman Sam [Ch. 4-5]
Decoy & Dumptruck Henchman [Ch. 5, 7]
Henchman Bill 'Mack' Haines [Chapters 5, 10]
Barn Henchman Stoner [Ch.8]
Doctor [Ch. 12]
Second Roadblock Cop [Ch. 1 bit]
Bank Watchman [Ch.1 bit]
Crooked Watchman [Ch. 2 bit]
Chemical Truck Cop [Ch. 5 bit]
Watchman Joe [Ch. 5 bit]
Dynamite Henchman Dirk [Ch. 6 bit]
Cave Policeman [Ch. 7 bit]
Second Garage Watchman [Ch. 7 bit]
Squadcar Cop [Ch. 7 bit]
Second Armored Car Guard [Ch. 11 bit]
