Keir Gilchrist

Keir David Peters Gilchrist is a Canadian actor and musician. He is best known for his roles on television, including Marshall Gregson in the Showtime comedy-drama United States of Tara (2009–2011) and as the lead in the Netflix comedy-drama Atypical (2017–2021). In film, Gilchrist has appeared in It's Kind of a Funny Story (2010) and It Follows (2014), among others. Aside from acting, Gilchrist is also a vocalist for the grindcore band Whelm and the death metal band Phalanx. Born in Camden Town, London, Gilchrist spent his early years in various cities before settling in Toronto, Ontario. He began his acting career at the Annex Children's Theatre.More