

Bartholomew JoJo "Bart" Simpson (born April 1, 1979) (originally planned to be Mort Simpson), also known as "El Barto," "The boy" (Homer Simpson), and "Bartman", is the mischievous, rebellious, misunderstood and "potentially dangerous" eldest child 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's also been on the cover on numerous comics, such as "Critical Hit", "Simpsons Treasure Trove #11" and "Winter Wingding". Bart also has a whole comic series known as the Simpson Comics Presents Bart Simpson. Bart is loosely based on Matt Groening and his older brother, Mark. He is known by various catchphrases such as "I'm Bart Simpson, who the hell are you?", "Ow! Quit it!", "Eat my shorts!", "Don't have a cow, man!", "Aye Carumba!" and "I didn't do it!"
Bio
- Allies: Homer (father), Marge (mother), Lisa (sister), Abraham Simpson (grandfather), Maggie (younger sister), Milhouse (best friend), Santa's Little Helper (pet dog), Ralph Wiggum, Patty and Selma (aunts), Krusty the Clown, Richard and Lewis, Wendell
- Rivals: Nelson Muntz
- Enemies: Mr. Burns, Sideshow Bob, Jack Lessen, Principal Skinner
- Likes: Skateboarding, playing video games, Rainer Wolfcastle movies, reading RadioActive Man comic books, Krusty the Clown, Itchy and Scratchy cartoons, teasing Homer, pranks, jokes, hang out with Milhouse
- Dislikes: Sideshow Bob, bullies, serving detention, being left out on family activities, Happy Little Elves
- Love interests: Laura Powers, Jessica Lovejoy, Jenny, Greta Wolfecastle, Mary Spuckler, Sarah, Becky, Sherri & Terri, Nikki McKenna, Darcy, Gina Vendetti, Caroline Berrera
Roles:
- He played Harry Potter in Bart Simpson (Harry Potter series)
- He played Peter Pan in Bart Simpson Pan, Bart Pan and Bart Pan: Return to Neverland
- He played John Darling in Sonic Pan and Bo Duke (Peter Pan)
- He played Patrick Star in CeciliaBob MorenoPants
- He played Pinocchio in Bart Simpsonocchio
- He played Young Simba in The Simpson King
- He played Abu in Homerladdin
- He played Timothy Q. Mouse in Michael (Dumbo)
- He played Cymbal-banging Monkey in Canal Famille Story 3
- He was one of the Sea World Kids in AnchorVampire 2:The Legend Continues
- He played Duncan in Woody & Friends (Thomas & Friends)
- He played Pow in Canimals (RockoRules2008 Style)
- He played Cody Newton in Bernard's Great Adventure
- He played Wybie Lovat in Taya (Coraline)
- He played Jimmy Neutron in Bart Simpson: Boy Genius and The Adventures of Bart Simpson: Boy Genius
- He Played Bashful in Vanellope White and the Seven Cartoons
- He Played Gromit in Homer and Bart (Wallace & Gromit)
- He Played Duke The Dog In Barnyard/Character
- He played Ryder in a Paw Patrol spoof
- He played Dumbo in Bart Simpson (dumbo)
- He played Lightning McQueen in Characters (Cars)
- He played Dirk Calloway in Sugar Rushmore
- He played Timon in The Forest King (The Lion King)
- He played Greg in The Wiggles Movie (John Clancy's Style)
- He played Chowder in Monster House (MarcusIsCool1998 Style)
- He played Barry B. Benson in Simpson Movie (Bee Movie)