Guy Haley is the author of the Horus Heresy novels Titandeath, Wolfsbane and Pharos, the Primarchs novels Konrad Curze: The Night Haunter, Corax: Lord of Shadows, Perturabo: The Hammer of Olympia, and the Warhammer 40,000 novels Dark Imperium, Dark Imperium: Plague War, The Devastation of Baal, Dante, Baneblade, Shadowsword, Valedor and Death of Integrity.

He has also written Throneworld and The Beheading for The Beast Arises series. His enthusiasm for all things greenskin has also led him to pen the eponymous Warhammer novel Skarsnik, as well as the End Times novel The Rise of the Horned Rat. He has also written stories set in the Age of Sigmar, included in War Storm, Ghal Maraz and Call of Archaon. He lives in Yorkshire with his wife and son.

Josh Reynolds is the author of the Horus Heresy Primarchs novel Fulgrim: The Palatine Phoenix, and two audio dramas featuring the Blackshields: The False War and The Red Fief. His Warhammer 40,000 work includes Lukas the Trickster and the Fabius Bile novels Primogenitor and Clonelord.

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. His tales of the Warhammer old world include The Return of Nagash and The Lord of the End Times, and two Gotrek & Felix novels. He lives and works in Sheffield.

Joe Parrino is the author of a range of Warhammer 40,000 stories, including the novella Shield of Baal: Devourer, the audio dramas Alone, Damocles: The Shape of the Hunt and Assassinorum: The Emperor's Judgement, and the short stories 'Witness', 'The Patient Hunter', 'Nightspear', 'In Service to Shadows' and 'No Worse Sin'. He lives, writes and works in the American Pacific Northwest.

Nick Kyme is the author of the Horus Heresy novels Old Earth, Deathfire, Vulkan Lives and Sons of the Forge, the novellas Promethean Sun and Scorched Earth, and the audio dramas Red-Marked, Censure and Nightfane.

His novella Feat of Iron was a New York Times bestseller in the Horus Heresy collection, The Primarchs. Nick is well known for his popular Salamanders novels, including Rebirth, the Sicarius novels Damnos and Knights of Macragge, and numerous short stories.

He has also written fiction set in the world of Warhammer, most notably the Warhammer Chronicles novel The Great Betrayal and the Age of Sigmar story 'Borne by the Storm', included in the novel War Storm.

More recently he has scripted the Age of Sigmar audio drama The Imprecations of Daemons. He lives and works in Nottingham.