Captain America / Steve Rogers
Reb Brown
Dr. Wendy Day
Connie Sellecca
Doctor
Arthur Rosenberg
Dr. J. Brenner
William Mims
Young Man
Alex Hyde-White
Young Girl
Lachelle Chamberlain
Mrs. Shaw
Susan French
Peter Moore
John Waldon
Milt (uncredited)
David S. Cass Sr.
Les (uncredited)
Bud Davis
Cal (uncredited)
Timothy O'Hagan
Dr. Simon Mills
Len Birman
Miguel
Christopher Lee
Helen Moore
Katherine Justice
Prof. Ian Ilson
Christopher Cary
Stader
William Lucking
Kramer
Stanley Kamel
Everett Bliss
Ken Swofford
Yolanda
Lana Wood
Art Direction
David L. Snyder
Director
Ivan Nagy
Consulting Producer
Stan Lee
Characters
Jack Kirby
Joe Simon
Second Unit Director
Rod Holcomb
Writer
Wilton Schiller
Patricia Payne
Executive Producer
Allan Balter
Producer
Martin M. Goldstein
Original Music Composer
Peter Carpenter
Mike Post
Director of Photography
Vincent A. Martinelli
Editor
Michael S. Murphy
Music
Frank Denson
Casting
Joe Reich
Set Decoration
Robert George Freer
Costume Design
Yvonne Wood
Unit Production Manager
Ralph S. Singleton
First Assistant Director
Patrick A. Duffy
Second Assistant Director
Steven P. Saeta
Barry Wetherby
Sound Effects Editor
Bruce Bell
Sound
Jerry Smith