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.
J.D. [to Cox]: you won't admit this, but you're in love with Carla.
Carla: No, he's not.
Dr. Cox: Actually, I am.
Carla: You're starting again.
J.D.: And Carla, you're mad that Turk didn't trust you enough to tell you.
Turk: See? Trust, woman, trust!
J.D.: Whatever. The point is that Turk is sorry.
Turk: Not anymore!
Carla: I can't believe you thought he was a threat.
Dr. Cox: I'm a threat!
Carla: You're not in love with me, you idealize me.
J.D.: Can we just try and stay focused...
Turk: You're mad 'cause I'm scared of losing you?
Carla: Yes, because we're stronger than that!
Dr. Cox: Apparently not!
J.D.: And get this: He calls it his "epiphany toilet"!
Elliot: Yeah, you couldn't pay me to poop on the roof.
Turk: No one's offering.