David Annandale is the author of the Warhammer Age of Sigmar novels Callis & Toll and A Dynasty of Monsters, and the Neferata titles Mortarch of Blood and The Dominion of Bones. His work for Warhammer 40,000 includes Apostle, Ephrael Stern: The Heretic Saint, Warlord: Fury of the God-Machine, the Yarrick series, and several stories involving the Grey Knights. His Horus Heresy titles include the novels Ruinstorm and The Damnation of Pythos, and the Primarchs novels Roboute Guilliman: Lord of Ultramar, Vulkan: Lord of Drakes and Mortarion: The Pale King. For Warhammer Horror, he has written the novels The House of Night and Chain and The Deacon of Wounds, as well as the novella The Faith and the Flesh. David lectures at a Canadian university, on subjects ranging from English literature to horror films and video games.

Josh Reynolds’ extensive Black Library back catalogue includes the Horus Heresy Primarchs novel Fulgrim: The Palatine Phoenix, and three Horus Heresy audio dramas featuring the Blackshields. His Warhammer 40,000 work includes the Space Marine Conquests novel Apocalypse, Lukas the Trickster and the Fabius Bile novels. He has written many stories set in the Age of Sigmar, including the novels Shadespire: The Mirrored City, Soul Wars, Eight Lamentations: Spear of Shadows, the Hallowed Knights novels Plague Garden and Black Pyramid, and Nagash: The Undying King. He has written the Warhammer Horror novel Dark Harvest, and novella The Beast in the Trenches, featured in the portmanteau novel The Wicked and the Damned. He has recently penned the Necromunda novel Kal Jerico: Sinner's Bounty. He lives and works in Sheffield.

Guy Haley’s work for Black Library spans the depth and breadth of the Warhammer universes. He is the author of several Horus Heresy novels, including The Lost and the Damned, Titandeath, Wolfsbane and three titles in the Primarchs series. He has also written many Warhammer 40,000 books, including Dawn of Fire: Avenging Son, the Dark Imperium trilogy, and the Belisarius Cawl novels The Great Work, Genefather and Archmagos. For Age of Sigmar he has penned the Drekki Flynt novels The Arkanaut’s Oath and The Ghosts of Barak-Minoz as well as many other stories. He lives in Yorkshire with his wife and son.