Guest Stars Lisa Picotte as Jill Scully Mary Krohnert as Amy Collins Walter Gotell as Kemmerling Andrew Prine as Agent Stears Michael Holden as Neil Joseph Kell as Frank Albert Hall as Colonel Delaney J. Teddy Davis as Carol George Lazenby as Dr. Clark Bob Goen as TV Announcer Robert Benedetti as Ben Collins Judith Flanagan as Mrs. Collins Matt Feemster as Billy Jason R. Sutherland as Mutant Child