Mark Fergus and Hawk Ostby are screenwriters best known for their work on Children of Men (for which they were nominated for the Academy Award for Best Adapted Screenplay) [1] and Iron Man. Their other work includes First Snow, which was also directed by Fergus, [2] and Cowboys & Aliens. [3]
They are the creators and executive producers of the TV series The Expanse, which debuted on Syfy in December 2015 [4] and ended its six-season run on Amazon Prime Video on January 14, 2022.