Hawk Ostby is an American screenwriter, producer, and television creator best known for his long-standing collaboration with fellow writer Mark Fergus. Together, they have written and produced several critically acclaimed science fiction and action projects, earning a reputation for combining thought-provoking storytelling with emotionally rich characters. Ostby received an Academy Award nomination for co-writing Children of Men (2006), Alfonso Cuarón's groundbreaking dystopian drama that is widely considered one of the finest science fiction films ever made. The writing duo also penned the screenplay for Iron Man (2008), helping establish the foundation of the Marvel Cinematic Universe and introducing one of cinema's most successful superhero franchises. Their additional film credits include Cowboys & Aliens and several unproduced high-profile projects. Beyond film, Ostby co-created and served as an executive producer of the acclaimed television series The Expanse, adapting James S. A. Corey's bestselling novels into one of the most respected science fiction series of the modern era. Throughout his career, Ostby has become known for crafting intelligent narratives that balance spectacular world-building with believable, deeply human characters, making him one of the most respected screenwriters working in contemporary science fiction.