Roy was born in Edinburgh and went to school in Kirkintilloch and Kirkcaldy. He is now living in Edinburgh again.
He has Masters degrees from Strathclyde and Glasgow, and a PhD from Stirling University, on the subject of media fandom (or, as his friends like to claim, he has a doctorate in Doctor Who…). He has taught and lectured on English and Film, and also worked front-of-house in a theatre.
In 2008, having completed Glasgow University's Creative Writing MLitt, he was shortlisted for the Sceptre Prize. In 2009/10 he was the winner of a New Writer's Award from the Scottish Book Trust.
The manuscript of his first novel made the shortlist for 2011 Kelpies Prize. It was published by Floris in 2012, under its new title - The Daemon Parallel. It has been very well reviewed, including this from Paul Magrs: "I adored The Daemon Parallel. I really, really want it to be the first in a sequence. I want it to be a boxed set of novels that are just about falling apart with repeated rereadings. That's how much I enjoyed this first one."
Roy is currently working on a number of projects, including a radio play, and his second novel.
He is registered with Live Literature Scotland.