Captain Britain and MI13Captain Britain and MI13.

Captain Britain and MI13 is an American comic book series published by Marvel Comics and written by Paul Cornell, with art by Leonard Kirk. The series centers on the fictional British government agency MI: 13, which is dedicated to protecting the United Kingdom from supernatural threats. The main strikeforce is led by the superhero Captain Britain (Brian Braddock), and consists of various Marvel Comics characters that are of British descent or have a connection to the country.