Doctor Percival "Perry" Cox is a doctor at Sacred Heart in Scrubs played by John C. McGinley.  Dr. Cox keeps a rough exterior and is very sarcastic even though he's always making his decisions to best help patients.

J.D. always looks up to Cox as a mentor but he preetends to hate J.D., even though he deep down things he's a good doctor.  He is an avid sports nut and frequently is seen wearing a Detroit Red Wings jersey.

He was the interim Chief of Medicine after Dr. Kelso retired and before Dr. Maddox took over.  He is expected to take back over this season.

Perry Cox Quotes

(to Turk) Look, surgeons always want to slice people open whether it's the best option or not. No disrespect, but you're just not that bright, you have no idea how to do anything else. Unfortunately, sick people are also very, very stupid and almost always agree to anything that a blood-letting corpse carpenter, such as yourself, tells them. I simply stay in the room to make sure they make the right choice.

Dr. Cox

Doug: Stringent what?
J.D.: "Stringent updoc". It's happening.
Dr. Cox: Yes, Nervous Guy?
Doug: What's "updoc"?

Scrubs Quotes

(to Turk) Look, surgeons always want to slice people open whether it's the best option or not. No disrespect, but you're just not that bright, you have no idea how to do anything else. Unfortunately, sick people are also very, very stupid and almost always agree to anything that a blood-letting corpse carpenter, such as yourself, tells them. I simply stay in the room to make sure they make the right choice.

Dr. Cox

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?