Keir Gilchrist

About

Keir David Peters Gilchrist (; born 28 September 1992) is a Canadian actor. On television, he portrayed Marshall Gregson on the Showtime comedy-drama United States of Tara (2009–2011) and the headlining role of Sam Gardner on the Netflix comedy-drama Atypical (2017–2021). His film roles include the comedy-drama It’s Kind of a Funny Story (2010) and the supernatural horror It Follows (2014). Outside of his acting career, Gilchrist is the vocalist of grindcore band Whelm and death metal band Phalanx.

Gilchrist was born in Camden Town, London, to Canadian parents Catherine (née Peters) and Ian Gilchrist. His maternal grandfather was banker, economist, and politician Douglas Peters, and his uncle is economist David Wilfrid Peters. Gilchrist spent his early years in London, before relocating to Boston, Massachusetts, during his childhood, then to New York City, before finally settling in Toronto, Ontario.

Gilchrist attended the Annex Children’s Theatre. Gilchrist’s first significant television role was that of Josh McKellar on Fox’s short-lived television sitcom The Winner, which aired in 2007. From 2009 until its ending in 2011, Gilchrist co-starred as Marshall…