Codename: Spitfire #12 was published by Marvel Comics on September 1, 1987, as part of a series that began in 1987. Fabian Nicieza and Len Kaminski write, and art comes from Bob McLeod, Bob Sharen and George Roussos. This 36-page issue features Jenny Swensen, Edmund Roth, Jake Travest and Anne Pollicino.