"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."
Dick Purcell
as Captain America / Grant Gardner
Lorna Gray
as Gail Richards
Lionel Atwill
as Cyrus Maldor
Charles Trowbridge
as Police Commissioner Dryden
Russell Hicks
as Mayor Randolph
George J. Lewis
as Bart Matson
John Davidson
as Gruber
Frank Reicher
as Lyman
Al Ferguson
as Detective
Howard Hickman
as Lyman’s Attorney
Tom London
as Mack
Edward Van Sloan
as Gregory
James Carlisle
as J.V. Wilson (uncredited)
John English
Director
Elmer Clifton
Dale Van Sickel
Stunt Double
John MacBurnie
Director of Photography
Bert LeBaron
Jesse Duffy
Screenplay
Jack Kirby
Characters
Fred A. Ritter
Art Direction
Charles S. Thompson
Set Decoration
Joe Simon
John Bagni
Stunts
Eddie Parker
Wallace Grissell
Editor
Bob Mark
Makeup Supervisor
Ronald Davidson
Basil Dickey
Joe Yrigoyen
Duke Green
Allen Pomeroy
Joseph F. Poland
Fred Graham
Mort Glickman
Music
Earl Turner
Ken Terrell
William J. O'Sullivan
Associate Producer
Grant Nelson
Harry L. Fraser
Royal K. Cole
Helen Thurston
John Daheim
Ed Borschell
Sound