Matthew Klinner's character was animated into the opening title sequence in the ending crowd scene along with The Boys, standing, waving, and smiling at the viewer next to the South Park sign. His character was created based on photographs that he sent to the South Park artists. Additionally, he was given a special poster signed by South Park creators Trey Parker and Matt Stone.
Matthew's character has brown hair that is combed on the top and shaved short on the sides and brown eyebrows. He wears a green shirt with two white skull designs on it and blue jeans.