Doctor Jonathan Micheael "J.D." Dorian is the main character and narrator of Scrubs and is played by Zach Braff. J.D. is best friends with Turk, who he's been friends with since they were roommates in college. J.D. quickly meets Elliot, who he falls for hard and has an on and off again relationship with throughout the series.
J.D.'s mentor is Dr. Cox who he is constantly trying to impress without making much headway. He also has a bitter rival at Sacred Heart who torments him endlessly... The Janitor. J.D. frequently daydreams where he tilts his head to the side and drifts away.
Lady: Love your Hairmet.
J.D.: Love yours!
Elliot: Keep up, people! We got pre-rounds to do! Get the lead out, Elvis!
J.D.: Okay, she's gone. Now, I've heard some rumors there's been some fraternizing with some of Dr. Reid's residents. Now, I don't want to mention any names... but, Slobodan, enough of that crap!
Doug: Watch your ass.