J.D. is feeling left out of his friendship with Turk and gets hurt when Turk is scared of opening up to him. Meanwhile, Carla is driven crazy over an unidentified urine sample, and Elliot tries to balance Sean and her career, so that one doesn't end up getting in the way of the other.
Elenco: Donald Faison , John C. McGinley , Ken Jenkins , Zach Braff , Sarah Chalke , Neil Flynn , Robert Maschio , Sam Lloyd , Christa Miller , Travis Schuldt , Johnny Kastl , Kerry Bishé , Eliza Coupe , Dave Franco , Michael Mosley , Robert Maschio , Sam Lloyd , Travis Schuldt .