Fred and George Weasley

Fred and George Weasley are the older identical[22] twin brothers of Ron. Born on April Fools' Day, they first appear in Philosopher's Stone as third-years and are the class clowns and troublemakers, more interested in inventing new pranks than studying. Despite their meagre number of O.W.L.s, the twins are proficient wizards capable of sophisticated magic. In addition, they served as Beaters for the Gryffindor Quidditch team.
The pair often comes to Harry's assistance throughout the series; in Chamber of Secrets, they and Ron help him escape his house arrest from Privet Drive, and give Harry the Marauder's Map during his third year. In Goblet of Fire, they begin selling their novelties under the name "Weasleys' Wizard Wheezes" and test their products on impressionable first-years and once on Dudley Dursley at the beginning of the book. The twins aspire to own a joke shop, and Harry provides their start-up capital by donating his winnings from the Triwizard Tournament. In Order of the Phoenix, the twins are banned from Quidditch after a postmatch brawl with Malfoy, and later eschew the remainder of their seventh year by taking part in a student uprising against Umbridge led by Harry, during which they light off a mass of fireworks and conjure up a Portable Swamp in a corridor before abandoning their education; a small amount of the swamp is later kept and cordoned off by Filius Flitwick as a tribute. In Harry Potter and the Half-Blood Prince, Fred and George continue to run their joke shop despite the unrest in Diagon Alley.
In Deathly Hallows, the twins are Order of the Phoenix members and serve as two of Harry's six decoys when he escapes Privet Drive. However, George's ear is severed by a stray Sectumsempra curse from Snape originally aimed at a Death Eater, an injury that is irreparable. Meanwhile, the twins are forced to abandon their shop due to the Death Eater-helmed Ministry of Magic's surveillance of the Weasley family, and instead operate another owl-order business out of their Auntie Muriel's house. Fred and George return to participate in the Battle of Hogwarts, during which George and Lee Jordan defeat Death Eater Yaxley, but Fred is killed in an explosion. Rowling said in an MSNBC interview that she always knew that Fred would be the one of the twins who would die, though she could not specify a particular reason.[23] She revealed in a web chat after the release of Deathly Hallows that George never fully got over Fred's death, but succeeded in turning Weasleys' Wizarding Wheezes into a "money spinner" with Ron, who eventually quit to become an Auror.[24] George marries Angelina Johnson, with whom he has two children, Fred and Roxanne.[8]
James and Oliver Phelps play Fred and George in all of the Harry Potter films to date. The Phelps twins are natural brunettes; their hair is dyed red for the films.