Dr. Christopher Duncan Turk

Turk is J.D.'s best friend from med school, now a confident, competitive surgical intern at Sacred Heart. He's charming, loud, and secretly a huge dork, prone to breaking into song or dance at the slightest excuse. He loves his work, loves winning, and loves his friends with an openness sitcoms rarely let men show.

Donald Faison plays surgeon-swagger and total goofball as the same person without any seam between them, which is the trick that makes Turk feel real rather than like two jokes stitched together. The friendship with J.D. is the show's emotional spine, and Faison's total lack of vanity about looking ridiculous keeps it funny instead of sappy.