Martin Prince, Jr. (born August 2, 1980) is a recurring character in The Simpsons. He is a friend and classmate of Bart Simpson, and is Lisa's rival in intelligence. He is Nelson Muntz's favorite target for bullying and is an academically brilliant teacher's pet, and is portrayed as a stereotypical nerd and an annoying little brat. Martin is a fourth-grade student at Springfield Elementary School. He is usually shown on friendly terms with Bart due to the fact that he is occasionally seen with him, along with Nelson, Milhouse, and other kids.