Promoted Fanboy: He is an enthusiastic player and huge fan of Warhammer 40,000, and in 2020 was overjoyed to be hired to write some spin-off comics.He even wields a sandwich to serve as a ' Combat Roll'. The Cameo: He makes an in-universe appearance in the Gamebook comic You Are Deadpool to demonstrate the dice combat mechanics in the story.He is bisexual, and many of his works feature gay or bisexual male characters whose m/m sex lives are given just as much story prominence and fanservicey depiction as female lesbian or bisexual characters', in contrast to populist comics' usual fanboy-friendly bias towards depicting f/f erotic scenes.

Most of his non-Loki comics for Marvel feature them.

He also has a real thing for very intelligent and very evil robots.

Phonogram is a love song to Britpop and Young Avengers is full of pop culture and music references.

He's not shy about his love of pop music, and almost every title he's written has an 'official' soundtrack.

Judgment Day (main miniseries and some spin-offs).

Many of his best-known works, including Phonogram, Young Avengers, and The Wicked and the Divine, are collaborations with artist Jamie McKelvie. He also wrote the introductory fiction for the second edition of Scion and contributed a setting to the second edition of Monsterhearts.

Currently, he's writing the creator-owned title Once & Future, as well as Marvel’s Eternals (2021) and Immortal X-Men. He also helped found, and for a long while wrote for Rock, Paper, Shotgun, and wrote the creator-owned mini-series Three. Kieron Gillen (born 30 September, 1975) is a British comics writer and game journalist, known for his series The Wicked + The Divine, DIE, Phonogram and several Marvel books, including Uncanny X-Men, Journey into Mystery (Gillen), Iron Man, Young Avengers, and Star Wars: Darth Vader.

Iron Man, Vol. 2 by Kieron Gillen