Stanley 'Stan' Marsh is one of South Park's main characters along with Kyle Broflovski, Eric Cartman, and Kenny McCormick. Stan attends South Park Elementary as part of Mr. Garrison's Fourth Grade Class (formerly Third). Stan's father Randy is a geologist, and his mother Sharon is a secretary at Tom's Rhinoplasty. He briefly had a step-father in 'Clubhouses', named Roy. (Source: Fandom.com, CC BY-SA)