Guest Stars Robert Joy as Dr. Sid Hammerback Claire Forlani as Dr. Peyton Driscoll Fiona Gubelmann as Isabella Cooksey Quincy Dunn-Baker as J.J. Huntsville Terrell Tilford as Dr. Quinn Brookman Chris Payne Gilbert as Dr. Henry Kroft Ryan Doom as Christopher Bowfield Co Starring Joseph Williamson as Derek Curson Ryan Johnson as Bob Smith Neill Skylar as Jennie Parker Wade Mylius as Homeless Guy