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