Guest Stars Stephanie Venditto as Dr. Lisa Harris Lisa Edelstein as Dr. Lianna Sardo Seamus Dever as Ronald Phelps Matthew Rauch as Dr. Klein Alicia Lagano as Michelle Holmes Alexandra Krosney as Young Lianna Sardo Eric Lutes as Dr. Evan Mayhew Katherine Kamhi as Paula Jason Hall as Jesse Marcia Rodd as Sandra Pappish Thom Gossom, Jr. as Pharmacist Francis Guinan as Dr. Charlton Gregory Michele Harrell as TBA Co Starring Robert Gallo as Building Manager Pamela Bel Anu as Young Sandra Pappish Jack Hannibal as Mr. Patterson Rae Ritke as Mrs. Patterson Maggie Kilbourne as ER Nurse Laurie Boloven as Wendy
