This actor voiced Sparky, Stan Marsh's gay dog, on an episode of South Park. He  was more successful
This actor voiced Sparky, Stan Marsh's gay dog, on an episode of South Park. He  was more successful as Dr. Doug Ross on ER. His first significant movie role was  in From Dusk Till Dawn, and his directorial debut was Confessions of a Dangerous  Mind. FTP name this actor who, along with Brad Pitt, is the only man to have been  twice named People Magazine's Sexiest Man Alive.
This actor voiced Sparky, Stan Marsh's gay dog, on an episode of South Park.