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