Doctor Christopher Duncan Turk, who's mostly known as just Turk, is played by Donald Faison and is J.D.'s best friend on Scrubs.  He is a surgeon at Sacred Heart and quickly dates and marries one of the nurses there, Carla Espinosa.  He and Carla then have a baby Isabella together.

Turk loves to dance and is definitely one of the best surgeons and makes it well known.  His man love with J.D. is one of the best parts of the show.

Turk Quotes

Dr. Cox: So, Nurse Ghandirella, I need you to suction this guy, do a wet-to-dry dressing change, and, oh, what the hell, go ahead and top him off with one of your special, special sponge baths - happy ending optional, his choice, not yours.
Turk: This guy's in a coma.
Dr. Cox: Not all of him.

Todd: Well, seriously, why wouldn't you want a better job?
Turk: Hold up. My Baby's happy with being just a nurse. Did I say "Just a nurse"? I didn't mean "just a nur-". Nobody at this table said "just-". I meant: "A Nurse." Right, Baby?
Carla: That's right!
Todd: Why?
Dr. Cox: Oh, just not smart. Even for you.

Scrubs Quotes

J.D.'s Thoughts: Wait, is she in to me? Quick, make a bad joke and see if she laughs.
J.D.: Did you hear the one about the skeleton who couldn't go to the party? He had no body to go with.
Neena: That's really funny!
J.D.'s Narration: Well that's not a fair test - that joke's hilarious.

J.D.: Hey, I heard a great joke. A guy walks into a dentist's office and says, "I think I'm a moth." And the dentist says, "Well, if you think you're a moth, why are you at a dentist's office?"
J.D.'s narration: Oh, no, I forgot the punchline... You can't bail out now! Stall! Stall!
J.D.: ...So the moth says "That's a good question. What kind of dentist are you?" And the dentist says, "Well, I'm a general dentist, but I...I do dabble in orthodontry - braces and such." And... and the moth says, "Orthodontry? I hear there's great money in that."
J.D.'s narration: "The light was on"!
J.D.: "But! To answer your original question, which was, if I think I'm a moth, why am I in a dentist's office? The answer is, Because the light was on!" The light! The light, James. Moths love light. So, James, other than your funny bone being broken, what seems to be the problem?