Randy Marsh

Dr. Randy S. Marsh is the son of Marvin and Grandma Marsh, the husband of Sharon, and the father of Stan and Shelley. He makes his debut in the Season One episode "Volcano" and is voiced by Trey Parker. Despite being a geologist with a doctorate, Randy is generally portrayed as an absent-minded idiot, driving many episode plots in the later seasons, though this was later revealed to be due to him being unhappy over his marriage. However, in earlier seasons, he was calmer and more level-headed, often providing advice...

Debut

Volcano