Edna Krabappel, better known as Mrs. Krabappel, is a character from the popular animated television series The Simpsons. She is a fourth-grade teacher at Springfield Elementary School and is voiced by actress Marcia Wallace. Mrs. Krabappel is known for her sarcastic wit and dry sense of humor. She is often seen smoking cigarettes in the school's faculty lounge and is often the target of Bart Simpson's pranks.