Dr. Kelso's beautiful but unethical replacement, Dr. Maddox, shakes things up at Sacred Heart, while J.D. struggles to manage a new crop of incompetent interns and Carla helps Elliott put her ego in check.
Quest roles:
Sam Lloyd(Ted Buckland), Eliza Coupe(Denise Mahoney), Julie Anne Robinson(Josephine), Travis Schuldt(Keith), Taran Killam(Jimmy), Aziz Ansari(Ed), Courteney Cox(Dr. Maddox), Michael Spiller(The Balloon Guy), Eric Artell(Rodney), James Ritz(Mr. Hicks), Jack Grinnage(Marvell), Betsy Beutler(Dr. Katie Collins)