Jesse Turner

Jesse Turner is a young but terrifyingly powerful boy capable of making everything he says or thinks come true.

Background and Characteristics
Jesse is adopted, a detail his "parents" have apparently kept from him. They work a lot, it seems, as Jesse cooks for himself and stays up later than they do; a demon also comments that they leave him alone all day. Despite his heritage, he is a normal boy. He attends school, likes soup and believes in many common child-age misconceptions and myths, like the tooth-fairy (albeit one that is an overweight, tutu-donning, middle-aged white man in dire need of a shave).

As described above, Jesse was unaware of his birth history and had never experienced any supernatural events until the point he was introduced in the series—and even then, the events he caused did not happen to him directly. After investigating his history and finding demon involvement, the brothers Winchester call Castiel and fill him in. His response was not of the good.

According to Castiel, Jesse is an Antichrist, also known as "cambion" or "katako". Contrary to common definition, he is not the son of Lucifer; he's just a form of demon spawn, born from a human woman—a virgin—impregnated by the demon which was possessing her. (The mechanics of this are not gone into in detail apart from natural labor and birth-giving.) He explains to them that the chaos Jesse has been causing is nothing compared to what it could be if he were to get angry. He then reveals that as the Antichrist, Jesse is destined to align with Lucifer and, "with a word", destroy the Heavenly Host.

Refusing to allow such a risk, Castiel resolves himself to kill Jesse, with or without the brothers' consent or help (not that he wanted to--he was near tears when it came time to do the deed). Before he could be killed, Jesse instinctively transforms Cass into a action-figure-sized version of himself.

In the moments to follow, Dean and Sam arrive and try to deceptively sugar-coat the situation (telling him he's a superhero and that they are going to train him in an X-men-esque fashion). When the demon who "conceived" him interrupts riding Jesse's birth mother, she tells him the brothers are lying and that his whole life has been a lie. This angers him awfully, and she promises to show him a world without lies.

Identifying with him entirely, Sam admits to lying to him and begins to describe the demon's "world without lies". When the demon tries to stop him, Jesse overwhelms her entirely (breaking her hold on Sam by saying "stop" and binding telling her to "to sit down and shut up") so he can hear Sam out. Sam tells him the score and he finds himself overwhelmed with the fact he's half-demon. Sam tells that while he is half-demon, he's half-human, too, and that he can still make the right choice. Jesse promptly exorcizes the demon from Julia with a mere "Get out of her."

Later Jesse asks what he should do. They tell him it's his choice. He asks to bring his parents with him and they tell him he can, but it would them in danger because both angels and demons will be gunning for him. He says he's going to say goodbye to parents. He writes his parents a letter, repairs the damage he caused around town (except for the dead), and vanishes.

Powers
Reality Altering - Simply by believing in the common myths, he (unknowingly) made a girl scratch her brain out from exposure to itching powder; caused a man to die from electrocution via joy buzzer; conjured a hideous middle-aged male Tooth Fairy who pulled out someone's teeth; gave a man stomach ulcers from Pop-Rocks and soda; and gave Dean hair on his palms after some naughty alone-time spurned on by a nurse. He also turned Castiel into a doll instinctively.

Stealth/Cloaking - Jesse's powers keep him from being found by angels or demons unless he wants to be. Athough Castiel states that Lucifer's presence on Earth kicks the child's powers into gear, this ability has always been active, keeping him from ever being detected by Heaven or Hell.

Exorcism - Jesse was able to exorcise a demon from his birth mother Julia with a simple "get out of her"

Teleportation - When Jesse went upstairs to "say goodbye to his parents", he vanished and Sam and Dean have not seen him since.

'Terrakinesis'- Can create a minor earthquake when angry

Species
Half Demon half Human (Demon spawn) or Cambion

Family
Julia Wright (Biological mother)

Mr. and Mrs. Turner (Adoptive parents)

Appearances
I Believe the Children Are Our Future