Guest Stars Jason George as Dr. Ben Warren Jaicy Elliot as Dr. Taryn Helm Debbie Allen as Dr. Catherine Avery Kheng Hua Tan as Vera Katano Dana Wheeler-Nicholson as Dana Hamilton James Saito as Herschel Katano Co Starring Payton Silver as Dr. A. Knox Mason Shea Joyce as Guthrie Hamilton Carolyn Ratteray as OB Fellow Markus Flanagan as Ed Hamilton Uncredited Kathy C. An as Nurse Bokhee