Chris Turk
Turk may be a surgical intern, but his many talents also include a flair for Michael Jackson impersonations.
He's a little cocky since he has always been the "big man on campus," but his new life-or-death reality may humble him a bit.
Romantically involved with Nurse Carla, Turk tries to balance his tough schedule with his relationship - and find time for his best friend, JD. Sometimes it works, most of the time it doesn't.