John C. McGinley

On Scrubs: Medici ai primi ferri (2001), his character Dr. Cox's habit of referring to J.D. ( Zach Braff) by girls' names was put in the show after the writers noticed McGinley doing it to Braff. He claims to do this to all of his friends.

[on how he memorizes his lines and prepares for his roles] I go downstairs and don't come up from there until I get that stuff hammered in my skull, until I can do it water skiing or jumping out of a plane. It's all about the text, flushing it out, to excavate, to really get in there and see what falls through your fingers.