Kieron Michael Gillen is a renowned British comic book writer and former video game and music journalist. His journey in the comics industry is highlighted by his notable works such as Once & Future, Die, Phonogram, and The Wicked + The Divine. The latter two were co-created with artist Jamie McKelvie and have been published by Image Comics. He has also made significant contributions to Marvel Comics, with projects like Journey into Mystery, Uncanny X-Men, Young Avengers, Eternals, and the major crossover storyline A.X.E.: Judgment Day.

Kieron's ventures into the Star Wars universe include writing for Darth Vader, the Star Wars series, and co-creating the character Doctor Aphra, who took the lead in her own ongoing spin-off comic series Star Wars: Doctor Aphra, with Kieron writing the first 19 issues.

Outside of comics, Kieron Gillen made his mark in video game journalism by creating the New Games Journalism manifesto and co-founding the gaming website Rock Paper Shotgun. His talent has been recognized with six Hugo Award nominations, including nods for The Wicked + The Divine, Once & Future, and Die. Furthermore, his work on Young Avengers earned him a GLAAD Media Award out of four nominations.