Dr. Percival Ulisses Cox

Informations not mine, they come from wikipedia which have my gratitude.

Portrayed by John C. McGinley
First seen My First Day
Occupation Chief of Medicine
Doctor of Internal Medicine
Attending Physician
Professor
Employer New Sacred Heart Hospital
Winston University
Relationship In a relationship with
Jordan Sullivan (ex-wife)
Family Paige Cox (sister)
Ben Sullivan (brother-in-law)
Danni Sullivan (sister-in-law)
Children Jack Cox
Jennifer Dylan Cox

Percival Ulysses "Perry" Cox, M.D. (most commonly referred to as Dr. Cox), is a fictional character played by John C. McGinley on the American television comedy-drama Scrubs.

Cox has appeared in every episode except three Season 8 episodes, "My Last Words", "My Comedy Show" and "My Full Moon".

Dr. Cox is the Chief of Medicine at Sacred Heart Hospital and Residency Director for the hospital, having accepted the former position after Dr. Bob Kelso's departure, and until Dr. Maddox (Courteney Cox) takes up the position. However, after concluding that Dr. Maddox is worse than Dr. Kelso, he teams up with the Janitor and Dr. Kelso to oust her. After a few days, Kelso convinces him to accept the Chief of Medicine position.

Dr. Cox is sarcastic and misanthropic, with a quick, cruel wit and a love of rants often making very illogical and self-destructive decisions in order to keep his "bad boy" image. He is athletic, often found playing basketball in the hospital's parking lot with younger hospital employees. In "My Friend the Doctor", he shows off by slam-dunking a basketball, but then injures his back when he lands, a reminder that he's middle-aged. Out of vanity, he tries to disguise his injury. In "My White Whale", Cox reveals he was circumcised as a baby; however, his son was not.

Cox can sometimes be seen wearing a blue and yellow Down syndrome awareness bracelet. McGinley's son has Down syndrome, and McGinley served as the spokesperson for the 2006 Down Syndrome Buddy Walk.

According to McGinley in the Season 1 DVD bonus features, Dr. Cox's habit of often touching his nose is a homage to Paul Newman's character in The Sting, although Cox also uses it as a sign of irritation on occasion, rather than just a sign signifying "it's going to be OK", as it was used in the film. Dr. Cox also has been compared to Gregory House by Kelso, who says, "Oh Perry, you are so edgy and cantankerous; like House without the limp." This is further explored in "My House", during which Cox acquires a temporary limp.

In the Season 2 DVD commentary of "His Story", series creator Bill Lawrence stated that one of Dr. Cox's quirks is that he knows if someone is standing behind him and who it is, without turning around to check. This quirk is defied during the finale when J.D. stands behind Cox as he tells one of the new interns how he really feels; throughout the speech, he gives no sign that he knows that J.D. is behind him. This may be intentional, as throughout the series Cox is loath to give J.D. compliments to his face.

He is also a very good golfer, regularly besting Dr. Kelso.

Cox harbors an intense hatred for Hugh Jackman, even going so far as to mention him frequently in his rants about things he hates throughout the series. According to a 2006 interview with McGinley, Cox hates Jackman because he envies the actor's talent.

Cox is occasionally seen wearing a Detroit Red Wings jersey. McGinley is a Red Wings fan and a close friend of Detroit defenseman Chris Chelios, whose name can be seen on the back of Cox's jersey. He has also been seen wearing a T-shirt for Cheli's Chili Bar, a small chain of restaurants owned by Chris Chelios.

Cox is a graduate of the Johns Hopkins University School of Medicine.

Dr. Cox is constantly condescending to the residents, giving main character John "J.D." Dorian girl nicknames (e.g. "Tiffany", "Jennifer"), calling Elliot Reid "Barbie" and calling Turk "Gandhi" as well as taking cheap shots at Turk's diabetes. The one person he openly admits to tolerating in the hospital is head nurse Carla Espinosa.