"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
Jack Kirby
Characters
Dale Van Sickel
Stunt Double
Joe Yrigoyen
Stunts
Eddie Parker
John MacBurnie
Director of Photography
Jesse Duffy
Screenplay
Joseph F. Poland
Bob Mark
Makeup Supervisor
Fred A. Ritter
Art Direction
William J. O'Sullivan
Associate Producer
Mort Glickman
Music
Earl Turner
Editor
Ken Terrell
Charles S. Thompson
Set Decoration
Grant Nelson
Joe Simon
John Daheim
John Bagni
Duke Green
Allen Pomeroy
Wallace Grissell
Ronald Davidson
Helen Thurston
Fred Graham
Bert LeBaron
Basil Dickey
Harry L. Fraser
Royal K. Cole
Ed Borschell
Sound