Remaining Cast:
Kenne Duncan ...Ed Graham [Ch. 14]
Ben Erway ...Used car lot manager [Ch. 7]
Al Ferguson ...Detective [Ch. 8]
Terry Frost ...Police broadcaster [Ch. 3] (voice)
Bud Geary ...Thug at Grant's Office [Ch. 13]
Fred Graham ...Agent B-10 [Chs. 4, 8-9] / Farm Thug [Chs. 14-15]...
Duke Green ...Platinum vault thug [Chs. 3-4] / Nitro-gas thug...
Ralf Harolde ...Tate, apartment thug [Ch. 2]
Howard C. Hickman ...Lyman's attorney [Ch. 4]
Charles Hutchison ...Merritt [Chs. 1-2]
Jerry Jerome ...Eddie, the informer [Ch. 1]
Jack Kirk ...Express truck driver [Ch. 5]
Glen Knight ...Morgue wagon driver [Ch. 11]
Bert LeBaron ...Airport thug [Chs. 8-9] / Dynamite thug [Ch....
Tom London ...Mack, garage thug [Ch. 7]
Herbert Lytton ...Carl Evans, second victim [Ch. 1]
George Magrill ...Mechanic-thug [Ch. 7]
Paul Marion ...Morgue wagon hijacker #1 [Chs. 9, 11]
LeRoy Mason ...Bates, Florist #3 [Ch. 1]
Frank O'Connor ...Officer at estate gate [Ch. 8]
Jack O'Shea ...Express truck crewman [Ch. 5]
Post Park ...Detective [Ch. 8]
Gil Perkins ...Barn thug [Ch. 2] / Hotel Room thug [Ch. 9] /...
Allen Pomeroy ...Cave thug [Chs. 6-7]
Stanley Price ...Purple Death chemist [Ch. 1]
Jeffrey Sayre ...Norden [Chs. 1-2]
George Sherwood ...Officer Clancy
Tom Steele ...Thug at Lyman's [Ch. 1]
Robert Strange ...Gang lawyer [Ch. 12]
Harry Strang ...Police mechanic [Ch. 4]
Ben Taggart ...Police Sgt. Donovan [Chs. 5, 9]
Ken Terrell ...Dodge Bldg. thug [Chs. 1-2] / Gang sharpshooter...
Dale Van Sickel ...Callbox motorcycle cop [Ch. 3] / Rick, Phony...
Edward Van Sloan ...Gregory, Lyman's Aide [Chs. 1-2]
Robert J. Wilke ...Thug with B-10 [Ch. 4]
Joe yrigoyen ...Box Co. thug [Chs. 5-6] / Barn thug [Ch. 9]
Superhero Captain America battles the evil forces of the archvillain called The Scarab, who poisons his enemies and steals a secret device capable of destroying buildings by sound vibrations.
