Paul Shaffer appeared in the Season Thirteen episode, "Fishsticks", along with David Letterman, who told the Fishsticks Joke to Shaffer on his show. He has yet to make another appearance on South Park.
Appearance
Paul Shaffer wears a blue shirt, a blue tie with yellow polka dots, a tan coat, and black, rectangular-framed glasses with dark lenses. Unlike many other Canadians depicted on the show, he does not have a floppy head and beady eyes.