5. Andy Richter as Andy Richter, Donnie Richter, Rocky Richter, Emmett Richter, and Chareth Richter
A student either learns and gets an L or they fluctuate" and get "An F. Donnie Richter How can Andy Richter, who played 5 different characters on the show, be anywhere but #5 on this list? Portraying Andy, the show off; Chareth, the flirt; Donny, the sensitive one; Rocky, Andy's stunt double; and Emmett, who did not want to be shown, but we have a pretty good idea what he looked like from composite photography; Andy Richter is one of the more memorable guest characters on the show. Through him, we also get a funny scene that involves Conan OBrian during the 4th season.