A.J. (Fairly OddParents)

A.J. is a character from the Fairly Oddparents tv show. He is one of Timmy's two best friends along with Chester. A.J. is smart and rich but is not very good at social skills, and as a result, he is considered an unpopular kid like his two friends.

Not much is known about A.J. before he met Timmy Turner, but he and Timmy had only been friends for about a few years according to several episodes. By the time the Fairly OddParents series takes place, A.J. had been friends with Chester and Timmy for a while.

He lives with his family, who are considered wealthy. In his house, it is revealed that he has a secret laboratory that he keeps hidden from his parents, the lab even has a clone of A.J. floating in a vat of liquid. Whenever his parents come into his room, A.J. flips a light switch and his room turns back into a normal boy's room. Although his parents are not as dumb as Timmy's parents, they are not exactly bright either, as they are still easily deceived by Vicky and hire her to babysit A.J., she tortures him like any other kid, and she even installed cameras and traps in their house.

At school, A.J. is considered the smartest student in his class and quite possibly the whole school, although he was once challenged when Jimmy Neutron visited his universe. He always tends to get an A in his work, but in the "You Doo" episode, he gets his first F.

He is not considered a popular student despite being rich, probably because he hangs around Timmy and Chester. Sanjay and Elmer are considered his "backup friends", but they are on a whole other level of unpopularity.

In the episode Fairy Idol, A.J. left to work with some scientists on a hair growth formula, leaving Chester behind all alone. When Chester received Norm the Genie as a fairy godparent, he used Norm's powers to make A.J. and the other bald scientists grow hair. They were then able to get all the ladies they wanted and refused to use their minds to work toward a way of solving the crisis Chester's other wishes had caused. Eventually, the effects were unwished, and A.J. lost all his hair (and his girlfriend), sending him and the other scientists "back to the lab". By A.J.'s next appearance in the series, however, he is a member of Mr. Crocker's class again.

When Timmy made his superhero wish and everyone became a superhero, A.J. became Professor A.J. who floated around in a flying chair and had a huge exposed brain. He used his telepathic powers to attack his enemies and shield himself. He is a parody of Professor X from X-Men.

A.J. played a minor role in the television movie trilogy Wishology, when he was captured by the Eliminators and held captive alongside Cosmo, Wanda, Jorgen, Chester, Trixie, Mr. Turner, and Mrs. Turner. When he learns that Timmy could have used his fairies all along to cure his baldness, he shed a tear. He is saved when Timmy sacrifices himself into The Darkness but does not appear much afterward.

An adult A.J. appears in the television movie Channel Chasers, during a sequence taking place in the "bad timeline" where the world has been taken over and destroyed by Vicky. He is muscular and has a flying board-like vehicle that he uses to escape Vicky's forces in the ruined future Dimmsdale. He appears to be wearing what looks to be like a tattered prison uniform, meaning that he and Chester may have been captured by Vicky at one point but escaped. He also harbored much resentment toward his old school. When he and Chester noticed it had been mostly spared from Vicky's destruction, A.J. leveled the building himself. After a long chase, and losing his friend Chester, A.J. makes it to his childhood house where he uses a microchip to complete a time travel belt he had hidden in his laboratory. However, the masked man that was chasing him suddenly captured him and handed him over to Vicky, then he took A.J.'s time belt and used it to change the past. Fortunately, the masked man turned out to be Future Timmy, and the world was restored to normal. Whatever fate awaited the captured future A.J. was erased after future Timmy succeeded in his mission.

A.J appears only in the extended cut of the Fairly Odd Movie. Throughout the movie, he and Chester watch and laugh at Timmy Turner, who is still stuck as a 5th grader while they have moved onto adult things, heavily suggesting that Timmy had drifted apart from his friends during the 13-year skip. He and Chester insist Timmy is "jealous" of them for some reason, even though Timmy ends up getting a girlfriend before them anyway. A.J.'s job is never specified, although he does have a Jaguar E-Type, which is a much nicer car than what Chester has. Near the end of the movie, Timmy gets help from A.J. and Chester by telling them about his fairies, although they don't believe him until he says he will use their powers to get them girlfriends. They only help him find a way inside and remind him to fulfill his promise. Timmy eventually fulfills his promise to his friends and gets them twin girlfriends.

Neither Chester, A.J., or Vicky appear in the shortened edition of the Fairly Odd Movie, which is the edition that Nickelodeon reruns.

And he is reprised by Gary LeRoi Gray in the English dub and Megumi Hazeyama in the Japanese dub.