Despite being one of the most devious archetypal characters in literature and pop culture, trickster god Loki has squirmed his way into readers'--and movie audiences'--hearts. Actor Tom Hiddleston can certainly take some credit for the recent surge of obsession with this character, thanks to his wily portrayals of Loki in Marvel's "The Avengers" and "Thor: The Dark World." However, Hiddles' take on the character is just one of Loki's many portrayals over the decades: He's been a man, a woman, a pyromaniac child, even a horse--and his story has spanned nearly every genre, from fiction to young adult to comic books. (Neil Gaiman has written three separate books starring him!) He is Loki of Asgard, and we are burdened with the glorious purpose of revisiting every version of him in pop culture.