The 6th Grader with Orange Coat is a student at South Park Elementary who is generally used as a background character.
His only major role was in his debut episode, "Pre-School", where he and the other 6th graders promise to defend the boys from Trent Boyett if they bring a photo of Stan's mother's boobs. The boys then bring the photo (which was actually a photo of Cartman's ass) and the 6th graders try to fight Trent but end up failing.
Not much is known about his personality. It can be assumed that he behaves the same as the other 6th graders, like spending time bullying younger children.
He is a tall 6th grader with curly dark brown hair, thick eyebrows and large cheeks. He wears an orange coat similar to Kenny's, dark blue pants, and black shoes.