Principal Sloan is the School Principal of Buddy Cianci Junior High School. He appears in "Running Mates" announcing to Peter and Lois about Chris peeping into the girl's locker room. In "North by North Quahog", he catches Chris, Jake, and two other classmates sneaking vodka in the restroom during the school dance. In "Fast Times at Buddy Cianci Jr. High" he transfers Brian to the remedial English class.
Principal Sloan is voiced by Wally Wingert.