Born and raised in Preston, Nova Scotia, Canada, Gray's love for literature stems from told and untold stories within his community. Gray found inspiration in spoken word to begin writing in high school during a writing workshop by poet and professor, Shauntay Grant. He did not read his first full novel until the age of 21.

Gray is the author of the award-winning picture book I’m From, illustrated by Oge Mora (HarperCollins/Balzer + Bray, 2023). His upcoming books include Spendin’ Time, illustrated by Rahele Jomepour Bell (HarperCollins/Spring 2026), and Unlimited, illustrated by Sam Onche (HarperCollins/Fall 2027).