Some fine acting highlights this chiller about the implications of brain control. Christopher Walken. Dr. Frederick: Joss Ackland. Miles: Ronny Cox. Major: Ralph Meeker. Orderly: Marco St. John. Medic: Tom Aldredge. Anna: Betty Henritze. Nurse Schroeder: Susan Travers. Lisa: Birthe Newmann. Formerly: "The Happiness Cage." Bernard Girard directed.