Guest Stars Patrick McKenna as Frank Kanaskie Catherine Disher as Dr. Linda Tuttle Laara Sadiq as Dr. Summers Salvatore Antonio as Robert Farina Ann Pirvu as Josey Ari Cohen as Derek David Fox as Colonel Reginald Platt Pauline Wong as Respiratory Therapist Jeffrey R. Smith as Car Accident Victim Priya Rao as Betty Sonia Rodriguez as Fiona Michaela Washburn as Nursing Coordinator Erin Keaney as Veteran's Nurse