Andrew Koenig, who starred on Growing Pains, has been missing since February 14, when he was supposed to return to his Los Angeles home after a trip to Vancouver. His father, Walter Koenig, received a worrisome note from his son February 16. "He sounded despondent," Walter Koenig told People. "I think it’s something that has been a part of his makeup for a long time. There’s no single trauma. There’s no episode. There’s nothing of that nature.” He added that drugs were not involved. The actor, 41, recently finished shooting a trailer for a movie he hoped to direct.