Bart is the mischievous, rebellious, misunderstood, disruptive and "potentially dangerous" oldest child. He is the only son of Homer and Marge Simpson, and the older brother of Lisa and Maggie. He also has been nicknamed "Cosmo", after discovering a comet in "Bart's Comet". Bart has also been on the cover on numerous comics, such as "Critical Hit", "Simpsons Treasure Trove #11", and "Winter Wingding". Bart also has a 100-issue comic series entitled the Simpson Comics Presents Bart Simpson. Bart is loosely based on Matt Groening and his older brother, Mark Groening. Even at a young age, Bart has accomplished many feats. He has won an award for his Angry Dad web series, he has discovered a new comet which was named after him, and he also has performed in a successful band with Milhouse Van Houten, Nelson Muntz, and Ralph Wiggum.

lets not forget about barts musical abilities, while he does not care the least bit about playing an instrument, he given abilities have been a showcase for this boy since the begining. Dont forget about his first acclaimed hit do the bartman, for him, it was all uphill. had he put as much effort into his music career, he wouldnt have had time for trouble, but seriously, who wants to work all time?

Bart was born on February 23 where he lit Homers tie on fire after ten minutes of being born. His birth date explains his prankster-like behavior. Bart is a self-proclaimed underachiever and prankster who is constantly in detention who in addition to his behavior is easily distracted. His penchant for shocking people began before he was born: Bart "mooned" Dr. Hibbert while he performed a sonogram on Marge when she was pregnant with him, and moments after being born, he set Homers tie on fire (Marge saying that he could not have done it on purpose because he was only ten minutes old). Bart's first words were "Ay Caramba" after he walked in on Homer and Marge at a bad time.

Bart and santas little helper are a match made in heaven, both oddballs of their kin, who have grown to love eachother. at times bart may be fed up with his true best friend, but they always find a way to solve any issues. thick and thin, these 2 will not be separated, ever