BART is a fictional character from the popular animated television series The Simpsons. STARRS is an acronym for the Springfield Transit Authority Rapid Rail System, which is the public transportation system in the show's fictional city of Springfield. MARGE is Bart's mother and a main character in the show. STARR is Bart's teacher at Springfield Elementary School. EDNA is Bart's fourth grade teacher. SIS is Bart's older sister Lisa Simpson.