President Howard
Dr. Diane Landis
Laura Crowley
Tom Brenner (as Thomas Wright)
General Ryker
Dusty
Dell Maxwell
Dr. Wayne Morgan
Brown (as Jeffery Combs)
Nurse Washington
Kirby Allenworth
Daniels
Special Agent Fraley
Dr. Amos
Ferrin
Garra (as Wiley Pickett)
Wallace (as Bobby Ray Shafer)
Althea Taylor
Asian Mother
US Marine
Hospital Security Guard (uncredited)