Nightcrawler is a 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. From Wikipedia
Marvel Studios confirms Cumming's reprisal of his fan-favorite X-Men role, marking a major milestone in integrating the X-Men into the MCU.
