J.D.'s brother Dan returns for a surprise visit and Elliot learns that J.D. has been telling Dan that she still likes him. A patient with weight-related problems needs an MRI, but he's too big for the machine. Carla and Turk freak out when they begin to discuss baby names. Meanwhile, Dr. Kelso assigns Dr. Cox to assist Ted with malpractice claim paperwork after Dr. Cox insults Dr. Kelso's son.
Quest roles:
Sam Lloyd(Ted Buckland), Christa Miller(Jordan Sullivan), Michael Hobert(Pizza Guy), Johnny Kastl(Doug), Tom Cavanagh(Dan Dorian), Travis Schuldt(Keith), Britt Erickson(Beautiful Woman), Jerod Mixon(Herbert), Jack Axelrod(Italian Man), Christine Ashe(Patient), Abigail Droeger(Kid)