Simplify the following text for a Grade 12 native English-speaking person.
Original: Trey Parker ( born Randolph Severn Parker III ; October 19 , 1969 ) is an American animator , screenwriter , director , producer , voice artist , musician and actor , best known for being the co-creator of the television series South Park along with his creative partner and best friend Matt Stone .
Simplified: Randolph Severn `` Trey '' Parker III ( born October 19 , 1969 ) is an American animator , screenwriter , film director , voice actor , actor , musician and Academy Award nominated lyricist . He is most noted as one of the creators of the animated series South Park along with Matt Stone .