Guest Stars Payton Silver as Dr. A. Knox Jeff Perry as Thatcher Grey Phil Abrams as Dr. Jim Nelson Tom Amandes as Charlie Waller Jocko Sims as Randy Isabella Hofmann as Irene Waller Ralph Waite as Irving Waller Kristen Ariza as Angela Ursula Whittaker as Angry Attending #1 Co Starring Mark Saul as Dr. Steve Mostow