This life size helmet paper model is the Loki Helmet, created by KaiserLee. It appears in Marvel comics and Mafia Wars. Loki is a fictional character, a supervillain who appears in comic books by Marvel Comics. He is the adoptive brother and archenemy of Thor. He is based on the being of the same name from Norse mythology. The character first appeared in Venus #6 (August 1949) and was created by writer Stan Lee, scripter Larry Lieber, and penciller Jack Kirby.