'The Enemy' by John W. Bloch

An alien saucer crashes and all but one of the crew are killed. The crash is witnessed by Gale Frazer, a nurse recently returned from Vietnam who has become sick of war; she rescues the survivor, Blake, and, despite the warnings of David Vincent, attempts to take care of him. But the crash has left Blake mortally wounded, and, wracked with pain, he begins to revert to his horrifying, natural state…

Roy Thinnes (David Vincent), Barbara Barrie (Gale Frazer), Richard Anderson (Blake), Paul Mantee (Vern Hammond), Gene Lyons (Sawyer), Russell Thorson (Sheriff), George Keymas (Lavin)
Directed by Robert Butler

A Quinn Martin Production

TX (US): 3rd October 1967

Notes:
*Featuring David Vincent