Nightcrawler (Kurt Wagner) is a fictional superhero appearing in American comic books published by Marvel Comics, commonly in association with the X-Men. Created by writer Len Wein and artist Dave Cockrum, he debuted in the comic book Giant-Size X-Men #1 (May 1975).
Nightcrawler is a member of a fictional sub-species of humanity known as mutants, who are born with superhuman abilities. Nightcrawler possesses superhuman agility, the ability to teleport, and adhesive hands and feet. His physical mutations include indigo-colored velvety fur which allows him to become nearly invisible in shadows, two-toed feet and three-fingered hands, yellow eyes, pointed ears and a prehensile tail. In Nightcrawler's earlier comic book appearances he is depicted as being a happy-go-lucky practical joker and teaser, and a fan of swashbuckling fiction. Nightcrawler is a Catholic, and while this is not emphasized as much in his earlier comic book appearances, in later depictions Nightcrawler is more vocal about his faith.