Guest Stars Debbie Allen as Dr. Catherine Avery Scott Speedman as Dr. Nick Marsh Kali Rocha as Dr. Sydney Heron Michael Thomas Grant as James Morgan Jack McBrayer as Tom Costello Michelle Veintimilla as Rhiannon Fletcher B.J. Minor as Julian Fletcher Nancy Youngblut as Donna Mae Clarkson Co Starring Payton Silver as Dr. A. Knox Kathy C. An as Nurse Bokhee Tom Ohmer as Ronald Meinero Miller Tai as Carl
