Steve Lyons’ work in the Warhammer 40,000 universe includes the novellas Engines of War and Angron's Monolith, the Imperial Guard novels Death World, Ice Guard and Dead Men Walking, and the audio dramas Waiting Death and The Madness Within. He has also written numerous short stories and is currently working on more tales from the grim darkness of the far future.

Cavan Scott is a writer, editor and producer of over 60 books and audio dramas, including the Sunday Times Top 10 Bestseller Who-ology - The Official Doctor Who Miscellany. Beyond Doctor Who, he has written for The Sarah Jane Adventures, Judge Dredd, Warhammer 40,000, Pathfinder, Adventure Time, Blake's 7 and many more.

He is currently co-writing the bestselling Star Wars: Adventures in Wild Space series for younger readers. He was the co-writer (with Mark Wright) of the Ninth Doctor audio adventure 'Night of the Whisper' and continues to write for, and produce, Big Finish audios for Doctor Who and more!