• 
  Christopher Lee

  Miguel
• 
  Connie Sellecca

  Dr. Wendy Day
• 
  Katherine Justice

  Helen Moore
• 
  Ken Swofford

  Everett Bliss
• 
  Christopher Cary

  Professor Ian Ilson
• 
  Alex Hyde-White

  Young Boy
• 
  Stanley Kamel

  Kramer
• 
  Reb Brown

  Captain America (Steve Rogers)

• 
  William Lucking

  Stader
• 
  Len Birman

  Dr. Simon Mills

• 
  David L. Snyder

  art director
• 
  Mike Post

  departament sunet
• 
  Michael S. Murphy

  montaj
• 
  Stan Lee

  miscellaneous crew
• 
  Allan Balter

  producător

• 
  Jack Kirby

  scriitor