Mervin Monroe - Otto Mann

Otto Mann voiced by Harry Shearer is the school bus driver for Springfield Elementary School. Otto is notable for his maniacal driving style (which, along with never getting a driver's license, cost him his job on the season three episode "The Otto Show"), his love of heavy metal music, drugs and his propensity for sounding and acting like a perpetual 1980s teenager. In early seasons he is often used as a friend and confidant to Bart, despite their age difference. Later seasons, however, usually only depict him as a passerby citizen of Springfield who does drugs (mostly marijuana and hallucinogens). He is a (last-minute) member of Homer's bowling team, the "Pin Pals". Otto is a skilled guitarist, and (momentarily) takes pride in the fact that this was the only thing he achieved during high school. In "The Otto Show" and "It's A Mad, Mad, Mad, Mad Marge," it's revealed that Otto is a military brat (his father was an admiral in the Navy) and the two don't get along at all. On season 18's "The Mook, The Chef, The Wife, and Her Homer," Otto reveals that he and Kearney were in the same third grade class, implying that Otto, much like Kearney, is older than his outward appearance would have others believe.