Robert Clarke
Major William Allison
Acting
Darlene Tompkins
Princess Trirene
Acting
Vladimir Sokoloff
The Supreme
Acting
Boyd 'Red' Morgan
Captain
Acting
Stephen Bekassy
Gen. Karl Kruse
Acting
John van Dreelen
Dr. Bourman
Acting
Arianne Ulmer
Capt. Markova
Acting
Ken Knox
Col. Marty Martin
Acting
Neil Fletcher
Air Force Chief
Acting
Jack Herman
Dr. Richman
Acting
William Shephard
Gen. York
Acting
James 'Ike' Altgens
Secretary Lloyd Patterson
Acting
John Loughney
Gen. Lamont
Acting
Russ Marker
Col. Curtis
Writing
Tom Ravick
Mutant
Acting
Don Flournoy
Mutant
Acting
Arthur C. Pierce
Mutant Escaping from Jail (uncredited)
Writing
Malcolm Thompson
Guard (uncredited)
Acting