Guest Stars Jaicy Elliot as Dr. Taryn Helm Debbie Allen as Dr. Catherine Avery Stefania Spampinato as Dr. Carina DeLuca Richard Flood as Dr. Cormac Hayes Debra Mooney as Evelyn Hunt Christopher Meyer as CJ Madison Raoul Bhaneja as Samar Caroline Basu as Daya Co Starring Kathy C. An as Nurse Bokhee Sylvia Kwan as Dr. Mabel Tseng Frances Nichols as Nurse Karen Vivian Nixon as Hannah Brody John O'Brien as Lab Tech Jeffrey Norman Nixon, Jr. as Nurse James Branden Silverman as Paramedic Deedee Magno Hall as Katrina Scott