Sparky

Sparky is Stan Marsh's dog, who is part doberman and part wolf, and is claimed by Stan to be "the toughest dog on the mountain". This assertion is challenged, however, by other South Park residents when Sparky's homosexual nature manifests; first with the mutt Sylvester and then with Clyde's dog, Rex.

Background
Sparky seems to not wait for consent from these dogs, and instead proceeds to jump upon them and have sexual intercourse much to the humiliation and confusion of the other dogs. Sparky also had a brief physical encounter with the mail-ordered poodle Fifi, but his only interest in Fifi was her diamond-studded collar.

Overhearing Stan repeating an anti-gay tirade, first heard from Mr. Garrison, Sparky flees to the shelter of Big Gay Al's Big Gay Animal Sanctuary. Sparky enjoyed the idea of being accepted for who he was, but still missed Stan immensely. Stan too missed Sparky, and forgoing his responsibilities with the school football team, went in search of Sparky. Stan managed to locate the Big Gay Animal Shelter and Sparky was soon found and returned to Stan. Initially, Stan intends to help Sparky overcome his homosexuality, but Big Gay Al realizing that Stan still doesn't get it, has the two of them ride his Big Gay Boat Ride, where Stan learned that being gay is okay.

Sparky's next appearance was in "Spookyfish" where he was seen digging up one of Sharon's dug up bodies.

Sparky next appeared in "Proper Condom Use" in which Stan proceeds to masturbate him, thinking that he's playing a game he learned from The 6th Graders, called "Red Rocket", in which one 'milks the dog'. Sparky, however, did not get to climax and was left to run off still aroused.

Sparky next suffered for irresponsibility of Stan and the boys when they threw a throwing star into the eye of Butters Stotch in the episode, "Good Times with Weapons". Rather than take Butters to the hospital, they shaved Sparky of his fur and glued it to Butters, with the intention of taking him to the vet under the disguise of a dog, and to avoid getting in trouble for playing with weapons. Sparky was obviously not pleased with the abuse.

Sparky is mentioned once in "Follow that Egg", when Bebe said she found Stan's and her egg in his dogs mouth.

He has a small cameo in "Woodland Critter Christmas" when Stan returns home at the end of the episode.

Behind the Scenes
Sparky was originally voiced by actor George Clooney. In interviews, Trey Parker and Matt Stone have stated that they have invited major celebrities to voice extremely minor characters in the pursuit of creating layers of irony on the show.

Appearance
Sparky is a dog with brown fur. He has a dark brown face and dark brown paws.

Prominence

 * "Big Gay Al's Big Gay Boat Ride"
 * "Spookyfish"
 * "Proper Condom Use"
 * "Good Times with Weapons"
 * "Woodland Critter Christmas"