Dr. Doctor (Dr. Horatio Gauche in South Park: Bigger, Longer & Uncut and Dr. Kels in "Cartman's Incredible Gift") is a doctor in South Park known for his unusual diagnoses. He worked in Hells Pass Hospital, although as of "Medicinal Fried Chicken", he seems to own his own practice.
He first appeared in "Cartman's Mom is Still a Dirty Slut" as one of the only surgeons at Hell's Pass Hospital with Nurse Goodly, working to save several patients including Dr. Alphonse Mephesto during a blizzard. He makes Jerome "Chef" McElroy, Eric Cartman, Stan Marsh, Kyle Broflovski and Kenny McCormick honorary doctors. At the end of the episode they successfully manage to recuperate Mephesto so he can reveal the identity of Cartman's father.
He was one of the doctors who operated on Kenny McCormick after being lit on fire and having a load of salt dumped on him. He replaces Kenny's heart with a baked potato, and was unsuccessful with reviving Kenny. At first he was incredibly upset, but straight after his cry, he and the other doctors just walked off whistling. He also called the parents of the children telling them they went to see the Terrance and Phillip movie, causing them to be grounded and start Mothers Against Canada.
In "The Biggest Douche in the Universe", after Cartman is admitted to the hospital following his possession by the soul of his deceased friend, Kenny McCormick, the Doctor's diagnosis is "his time is running out", and uses that phrase as if it were a literal medical diagnosis, explaining if he doesn't get a "time transplant", he will die. In the episode "You Got F'd in the A", which is a spoof of the film 'You Got Served', the Doctor treats Randy Marsh after Randy is "served" (slang term for being beaten in a dance competition) by a group of street dancers, as if "being served" constitutes an actual physical transgression that incurs major injuries.
In "Pre-School", he treats the kids of South Park after bullying, even though they were merely the victim of mild abuse such a "second-degree titty twister." In "Cartman's Incredible Gift", after Cartman is hospitalized following an attempt to fly by jumping off a roof with cardboard wings, the Doctor tells his mother that he is "incredibly stupid" and that the stupidity caused the fall.
In "Stanley's Cup", he is the doctor for Nelson Brown, a young boy with cancer who plays for the Park County Pee-Wee Hockey Team that Stan is coaching. After the team draws with the Adams County Pee-Wee Hockey Team, Dr. Doctor explains to Stan that Nelson is in a "cancer limbo" because neither team won. He explains that Nelson's hope that Stan will lead the team to victory is the only thing keeping him alive, and that if the team were to lose, he is sure to die.
In "Medicinal Fried Chicken", Dr. Doctor returns, now working at his own practice, when Randy Marsh sees him for medical marijuana. He assures Randy that he's healthy, so Randy goes out of his way to get Testicular Cancer so he can smoke medical marijuana. Doctor is intelligent enough to notice the correlation between the rise in cancer and the marijuana store, but incorrectly asserts that KFC is keeping people healthy, resulting in Marijuana being banned, and KFC being re-legalized as Medicinal Fried Chicken.
In episodes such as "About Last Night...", "Poor and Stupid" and "You're Getting Old", different Doctors are shown, but Dr. Doctor reappears from time-to-time. His absence could possibly be explained by him working out of his own practice instead of Hell's Pass Hospital now.
Dr. Doctor wears teal scrubs with a name tag with his name on it. He also wears a stethoscope, surgical mask when he is performing surgery, and a white shirt. He has black wavy hair and black eyebrows.
- Dr. Doctor was voiced by George Clooney in South Park: Bigger, Longer & Uncut. George Clooney also previously played Sparky, Stan's gay dog, in Big Gay Al's Big Gay Boat Ride.
- In the episode "Summer Sucks", there is a fireworks guy who looks just like him.
- Dr. Doctor is apparently a skilled heart surgeon, as he almost saves Kenny's life in South Park: Bigger, Longer, and Uncut, only failing to do so because he replaced it with a baked potato.
- Dr. Doctor has a strong stomach, as shown in "Cartman's Mom is Still a Dirty Slut", when he sees a patient's head fall off, and hearing a needle scrape against the bone. However, everyone but Stan also tolerated it.
- "Cartman's Mom is Still a Dirty Slut" - He is one of the surgeons, at hospital and works to save numerous patients including Dr. Alphonse Mephesto during a massive snowstorm.
- "Chickenpox" - Treats Shelly Marsh, Stan Marsh, Eric Cartman, Kyle Broflovski and Kenny McCormick for their chickenpox.
- "Cow Days" - He tell Stan, Kyle and Kenny that Eric Cartman suffered a head injury after riding a bull in order to win a consent.
- "Chef Aid" - Diagnoses Mr. Twig.
- "Are You There God? It's Me, Jesus" - Tells Mrs. McCormick and Stuart McCormick that he could not save their son.
- "Cartman Joins NAMBLA" - Killed in Kenny's dream by a new born demon baby.
- "Cherokee Hair Tampons" - Tells Stan Marsh that Kyle Broflovski needs a kidney transplant or he'll die.
- "Fat Camp" - Announces that Kenny Impostor is dead after he spends six hours inside Ms. Crabtree.
- "Fun with Veal" - Treats Stan Marsh after he falls ill after not eating meat.
- "The Biggest Douche in the Universe" - Tells Liane Cartman that her son needs more time.
- "I'm a Little Bit Country" - Tells Liane Cartman that her son's chances of survival are relatively slim after he shocks himself in order to have a flashback.
- "Fat Butt and Pancake Head" - Talks to Liane Cartman about her son's condition after Eric Cartman's hand is hit by Jennifer Lopez.
- "Good Times with Weapons" - Claims that he does not known how to help Butters due to being disguised as a dog.
- "You Got F'd in the A" - Treats Randy Marsh after he got "served".
- "Pre-School" - Treats The 6th Graders and Butters Stotch to their bullying injuries.
- "Cartman's Incredible Gift" - He tells Liane Cartman that her son is stupid, after Cartman jumps off a roof.
- "Best Friends Forever" - Tells the McCormicks that their Kenny cannot communicate with anyone due to him being brain dead.
- "Ginger Kids" - Checks out Cartman "Gingervitus", after Stan Marsh, Kyle Broflovski and Kenny McCormick sneak into Cartman's room put make-up on him.
- "Stanley's Cup" - Explains to Stan that his cancer patient Nelson Brown is "cancer limbo" due to neither Park County Pee-Wee Hockey Team nor Adams County Pee-Wee Hockey Team winning. He explains that Stan leading Nelson's team to victory is the only thing keeping him alive and that if the team were to lose he would surely die.
- "More Crap" - Tells Randy Marsh that he is constipated.
- "Tonsil Trouble" - Tells Sheila Broflovski that her son Kyle Broflovski has HIV.
- "Margaritaville" - Announces that Kyle passed out after he paid for everyone's debts.
- "Medicinal Fried Chicken" - Tells Randy he has testicular cancer.
- "You're Not Yelping" - Appears during The Yelper Special.