James Swallow is a British author. A BAFTA nominee and a New York Times, Sunday Times and Amazon #1 best-seller, he is the author of several original books and tie-in novels, as well as short fiction, numerous audio dramas and video games.
His writing includes the Marc Dane series of action thrillers, the Sundowners series of Western fiction steampunk novels, and fiction from the worlds of Star Trek, Warhammer 40,000, Doctor Who, 24, Stargate, 2000 AD and many more. He lives and works in London.
Although uncredited, Swallow is the only British writer to have worked on a Star Trek television series, having created the original stories for "One" and "Memorial", two episodes of the series Star Trek: Voyager.
His novel Day of the Vipers won the International Association of Media Tie-in Writers Scribe Award for Best Original Speculative Fiction in 2009 and his novel Day Zero won the Best General & Adapted Novel category in 2021. He was also nominated for the Scribes in this category for Faith & Fire in 2007 and Fear Itself in 2019. His novel Deadline was nominated in the Best Original General Fiction category in 2015,.
Nominated for the 2018 Dragon Award for Best Media Tie-In Novel for Fear Itself.
His novels The Poisoned Chalice, Fear To Tread  and Nemesis  were New York Times Bestsellers in 2013, 2012 and 2010. His novel Nomad was a Sunday Times and Irish Times bestseller in 2016; the follow-up novel Exile was a Sunday Times bestseller in 2017.
At the Pegusus 2 convention held in the UK in 2007, James Swallow auctioned off the chance to have a "walk on role" in the Stargate SG-1 novel Relativity. The money was given to charity. He has previously done this with the books Underworld and Whiteout, and the Doctor Who audio drama Destiny of the Doctor: Shockwave.