Hela is a fictional character appearing in American comic books published by Marvel Comics. The Asgardian goddess of death is based on the Norse goddess Hel. The ruler of Hel and Niflheim, the character has been a frequent foe of Thor. Debuting in the Silver Age of comic books, Hela first appeared in Journey into Mystery #102 and was adapted from Norse mythology by editor/writer Stan Lee and artist/writer Jack Kirby.