Chucky

Chucky is the chief antagonist of the Child's Play series of films as well as associated media such as comic books, he is often called the "killer doll" and has become more comedic over the years but still mercilessly psychotic and quite proud of his murderous nature.

Originally a human serial-killer Chucky was shot dead in a fight with police but managed to survive via his knowledge of voodoo, which he used to conjure his soul into the body of a Good Guy doll - however he soon learned that the longer he spent in the doll's body the more "human" the doll would become and in time he would be stuck as a doll forever.

Chucky didn't wish for this to happen (at least not until the Spawn Of Chucky, when he finally embraced his status as a "killer doll") - and for most of the film series sought to take over the body of a young boy named Andy so as to fully cheat death.

Despite his small size and limited physical power Chucky proved to be a diabolical opponent, driven by a mixture of determination and insanity the doll terrorised Andy for much of his life and killed many people who either got in the way of his plans or who he simply took a dislike to (though Chucky also kills for the fun of it, as can be seen by his famous maniacal laughter).

Although virtually immortal Chucky can die, his doll-body becoming more and more "human" in time and when injured he bleeds and even feels pain - yet as a doll he can tolerate such injuries extremely well and has traditionally been killed in very elaborate and gruesome ways due to him being so difficult to kill.