Fio Trethewey is a writer and artist known for their love of Doctor Who, Arthurian Legend and 80s cult classics.

Alongside working for the Lancet as a Deputy Operations Manager he has written a variety of audio dramas and short stories for Big Finish Productions for their Doctor Who box sets, most recently writing for the Gallifrey War Room Series both ‘The Last Days of Phaidon” (2022), “Transference” (2023) and The Twelfth Doctor Chronicles finale "You Only Die Twice.'

Fio has also contributed their prose work to various anthologies including Overdue: Mystery, Adventure, and the World’s Lost Books, Shadows Over Avalon Volume 2 and Sockhops and Seances for 18thWall Productions. Lastly, as a writer and artist to charity anthologies and raised money on a charity drawing stream for FareShare UK back in October 2020 raising $4,762.

Fio now lives in London and dating fellow writer Georgia Cook, where they are currently working on their own original horror fiction podcast The Holmwood Foundation.