Stanley "Stan" Marsh is a main character in the animated television series South Park. He is voiced by and loosely based on series co-creator Trey Parker. Stan is one of the show's four central characters, along with Eric Cartman and friends Kyle Broflovski and Kenny McCormick. He debuted on television when South Park first aired on August 13, 1997, after having first appeared in The Spirit of Christmas shorts created by Parker and long-time collaborator Matt Stone in 1992 (Jesus vs.