Reb Brown
Captain America / Steve Rogers
Len Birman
Dr. Simon Mills
Heather Menzies
Dr. Wendy Day
Joseph Ruskin
Rudy Sandrini
Frank Marth
Charles Barber
Steve Forrest
Lou Brackett
James Ingersoll
Lester Wiant
Jim B. Smith
F.B.I. Assistant
Nocana Aranda
Throckmorton (uncredited)
Michael McManus
Ortho (uncredited)
Lonnie Pense
Wino in Park (uncredited)
Charles A. Tamburro
Helicopter Pilot (uncredited)