Sylvester

Sylvester was a street dog and he appeared in the Season One episode, "Big Gay Al's Big Gay Boat Ride". Sylvester was the toughest dog in South Park.

Background
In Big Gay Al's Big Gay Boat Ride, Stan's dog Sparky had sex with him, and made him slink away.

He made his second and last appearance in Ike's Wee Wee. He was killed by a truck.

Appearance
Sylvester is a dirty dog with brown fur and yellow teeth. His right eye is purple.