Warren Kenneth Worthington III is a superhero appearing in American comic books published by Marvel Comics. Created by writer Stan Lee and artist Jack Kirby, the character first appeared in The X-Men #1. Warren is a founding member of the X-Men, having used the moniker Angel. Later stories would reveal that prior to joining the team, he had acted as a vigilante under the moniker Avenging Angel.

Uncanny X-Men, originally published as The X-Men, is an American comic book series published by Marvel Comics since 1963, and is the longest-running series in the X-Men comics franchise. It features a team of superheroes called the X-Men, a group of mutants with superhuman abilities led and taught by Professor X.