Treacheries of the Space Marines

David Annandale (born 1967) is a Canadian speculative fiction author. He received a BA (1990) and an MA (1992) from the University of Manitoba, and took a PhD from the University of Alberta; he currently teaches at the University of Manitoba.

Sarah Cawkwell is a sci-fi and fantasy writer based in the North East of England. Old enough to know better, she’s still very much young enough not to care. She’s been a writer for many years, and her published works include several novels and short stories within the Warhammer and Warhammer 40,000 universes and an original alternate-history fantasy novel. When not slaving away over a hot keyboard, Sarah’s hobbies include reading everything and anything she can get her hands on, gaming and other assorted geekery.

Aaron Dembski-Bowden is a New York Times-bestselling author from Northern Ireland, best known for his work on the Warhammer and Warhammer 40,000 science fiction universes. His notable works include the Horus Heresy novels The First Heretic and The Master of Mankind, as well as the popular Night Lords series and novels such as Spear of the Emperor and Black Legion. He has also written for Riot Games and started his career by writing for friends before moving into video games and RPGs. Since 2022 he has worked as the head of narrative at Games Workshop.

Matthew Farrer (born 1970) is from Canberra, Australia and is a member of the Canberra Speculative Fiction Guild. He has been writing since his teens, however did not garner success until his short story Badlands Skelter's Downhive Monster Show appeared in Inferno! and subsequently Status: Deadzone. Since then he has written the Shira Calpurnia (Novel Series) and a number of short stories and was shortlisted for an Aurealis Award in 2001.

John French is an award winning script writer, novelist, and games designer. He has written over twenty books over a decade-long career, notably the Ahriman series set in the dystopian far future of Warhammer 40,000, and six novels in the New York Times Bestselling The Horus Heresy series, most recently The Solar War and Mortis. His other work includes cosmic horror in the Lord of Nightmares Trilogy from Fantasy Flight Publishing, and detective fiction in The Last Visitor in Further Associates of Sherlock Holmes from Titan Books (writing as Stephen Henry). He has been a series writer for three animated TV shows and written the scripts for over thirty produced episodes. In the realm of video games, he has worked as a story designer and writer on multiple titles, including Darktide and the forthcoming Dawn of War IV. In 2018 he won a Scribe Award for Best Audio with his script for the drama Agent of the Throne: Blood and Lies.

Jonathan Green works as a full-time teacher in West London. He started writing for Games Workshop in 1994. He has written for various science fiction and fantasy franchises, including Doctor Who, Fighting Fantasy, Sonic the Hedgehog, and Games Workshop's Warhammer and Warhammer 40,000 game universes.

Andy Hoare is a British author and games designer, best known for his work within the Warhammer universe. He has written several novels and short stories set in both Warhammer 40,000 and Warhammer Fantasy Battle universes, as well as working for the game's publisher, Games Workshop, where he has contributed to the development of tabletop games and rulebooks. His writing often delves into the rich tapestry of lore associated with these settings, bringing to life the epic conflicts and intricate politics of the Warhammer world. Hoare's background in game design is often reflected in the detailed and strategic elements of his narratives.

Anthony Reynolds was a Games Developer and manager at Games Workshop in the UK. Since then he's written freelance for a number of companies, including Black Library Publishing, Mantic Games, THQ, Bandai-Namco, Behaviour Interactive, and River Horse Games. He currently lives in California.