Capitão America

Reb Brown

Captain America / Steve Rogers

Connie Sellecca

Dr. Wendy Day

Len Birman

Dr. Simon Mills

Christopher Lee

Miguel

Katherine Justice

Helen Moore

Christopher Cary

Prof. Ian Ilson

William Lucking

Stader

Stanley Kamel

Kramer

Ken Swofford

Everett Bliss

Lana Wood

Yolanda

Arthur Rosenberg

Doctor

William Mims

Dr. J. Brenner

Alex Hyde-White

Young Man

Lachelle Chamberlain

Young Girl

Susan French

Mrs. Shaw

John Waldon

Peter Moore

David S. Cass Sr.

Milt (uncredited)

Bud Davis

Les (uncredited)

Timothy O'Hagan

Cal (uncredited)