What is Stan Marsh's last name?

Stan Marsh’s last name is Marsh.

Stan’s full name is Stanley Randall Marsh, making Marsh his family name. He is one of South Park’s four main boys, along with Kyle Broflovski, Eric Cartman and Kenny McCormick. The character is voiced by co-creator Trey Parker.

Stan lives with his parents, Randy and Sharon Marsh, and his older sister, Shelley. His family’s stories often provide a bridge between the children’s perspective and the show’s satire of adult behavior. Randy’s increasingly bizarre schemes, in particular, became a major source of South Park plots.

“Stan” is a shortened form of Stanley, not a surname. The other boys’ family names are different: Kyle is Broflovski, Kenny is McCormick and Eric is Cartman. Stan is also sometimes confused with his father because both share the Marsh surname, but the trivia question refers to the boy, whose complete name is Stanley Randall Marsh.