Una McCormack is a New York Times bestselling author. She has written four Doctor Who novels: The King's Dragon and The Way through the Woods (featuring the Eleventh Doctor, Amy, and Rory); Royal Blood (featuring the Twelfth Doctor and Clara), and Molten Heart (featuring the Thirteenth Doctor, Yaz, Ryan and Graham). She is also the author of numerous audio dramas for Big Finish Productions. She has also written Doctor Who: Caged, featuring the Fifteenth Doctor and Ruby Sunday, which won a BSFA award in 2025 for best science fiction for younger readers.