Pérák, the Spring Man, was an urban legend originating from the Czechoslovak city of Prague during the German occupation of Czechoslovakia in the midst of World War II. In the decades following the war, Pérák has also been portrayed as a Czech superhero.

A superhero or superheroine is a stock character who typically possesses superpowers or abilities beyond those of ordinary people, is frequently costumed concealing their identity, and fits the role of the hero; typically using their powers to help the world become a better place, or dedicating themselves to protecting the public and fighting crime. Superhero fiction is the genre of fiction that is centered on such characters, especially, since the 1930s, in American comic books, as well as in Japanese media.