Thor is a fictional superhero who appears in publications published by Marvel Comics. The character first appeared in Journey into Mystery #83 (Aug. 1962) and was created by editor-plotter Stan Lee, scripter Larry Lieber, and penciller Jack Kirby.
Debuting in the Silver Age of Comic Books, the character is based on the Thor of Norse mythology. He has starred in several ongoing series and limited series, and has been a perennial member of the superhero team the Avengers, appearing in each of the four volumes. The character has also appeared in associated Marvel merchandise including animated television series, clothing, toys, trading cards and video games. The film Thor, based on the character and comic, was released in 2011, with Kenneth Branagh as director and Chris Hemsworth starring as Thor.
Thor's father Odin decided his son needed to be taught humility and consequently placed Thor (without memories of godhood) into the body and memories of an existing, partially disabled human medical student, Donald Blake. After becoming a doctor and on vacation in Norway, Blake witnessed the arrival of an alien scouting party. Blake fled into a cave after they heard him and began to pursue him. After discovering Thor's disguised hammer Mjolnir, and striking it against a rock, he transformed into the thunder god.