Gilchrist at the 2010 Toronto International Film Festival
|Born||Keir David Peters Gilchrist
September 28, 1992
Camden, London, England, UK
|Relatives||Douglas Peters (grandfather)|
Keir David Peters Gilchrist (born September 28, 1992) is an English-born Canadian actor. Gilchrist is known for playing Marshall Gregson on Showtime's original series United States of Tara, Craig Gilner in the 2010 comedy-drama film It's Kind of a Funny Story, Paul in It Follows, and Sam Gardner in the Netflix original series Atypical.
Gilchrist was born in Camden Town, London, to Canadian parents Catherine (née Peters) and Ian Gilchrist.  His maternal grandfather is Canadian banker, economist, and politician Douglas Peters, and his uncle is economist David Wilfrid Peters. He has Scottish, English, and Northern Irish ancestry. 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 discovered his passion for acting at a young age, and his drama teacher persuaded him to become a professional actor. He 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 Gregson, the son of the lead character portrayed by Toni Collette, on the Showtime comedy-drama series United States of Tara.
In 2009, Gilchrist won the lead role of Craig Gilner in the comedy-drama film It's Kind of a Funny Story, which premiered at the Sundance Film Festival in January 2010. In 2014, Gilchrist co-starred with Maika Monroe and Jake Weary in the thriller film It Follows. Also in 2014, he portrayed the lead role of Daniel Austin in the thriller film Dark Summer. He next starred as John Lovett in The Stanford Prison Experiment (2014), and William in Len and Company (2015). In 2015, he also portrayed the boyfriend of Taissa Farmiga's character in the Cannes Film Festival-winning short drama film Share. In May 2015, he and James Caan were cast to co-star in the thriller film The Good Neighbor.
|2004||The Right Way||Young David|
|2005||The Waldo Cumberbund Story||Young Waldo|
|2006||A Lobster Tale||Mike Stanton|
|2007||Dead Silence||Young Henry|
|2008||The Rocker||Moby Type Kid|
|2009||Just Peck||Michael Peck|
|2009||Hungry Hills||Snit Mandolin|
|2010||It's Kind of a Funny Story||Craig Gilner|
|2011||Matty Hanson and the Invisibility Ray||Matty Hanson|
|2013||Seasick Sailor||Penna||Short film|
|2015||Dark Summer||Daniel Austin|
|2015||The Stanford Prison Experiment||John Lovett|
|2015||Len and Company||William|
|2015||Tales of Halloween||The Stranger||Segment: "The Weak and the Wicked"|
|2016||The Good Neighbor||Sean Turner|
|2016||Katie Says Goodbye||Matty|
|2017||The Heyday of the Insensitive Bastards||Michael||In post-production|
|2017||Heartthrob||Henry Sinclair||In post-production|
|2003||Queer as Folk||Jim Stockwell Jr.||Episode: "#3.9"|
|2004||Doc||R.J. Mitchell||Episode: "The Last Ride"|
|2004||Samantha: An American Girl Holiday||Factory Boy||Television film|
|2005||1-800-Missing||Danny Sheperd||Episode: "Unnatural Disaster"|
|2006||Miss Spider's Sunny Patch Friends||Squidge||Episode: "Giddy Up Bugs/A Plushy Parable"|
|2006||ReGenesis||10 Year Old Boy||Episode: "The Wild and the Innocent"|
|2007||Family Guy||Kyle (voice)||Episode: "The Tan Aquatic with Steve Zissou"|
|2007||The Altar Boy Gang||Neil||Unsold pilot|
|2007||The Winner||Josh McKellar||Main role, 6 episodes|
|2007||Life with Derek||Jamie||3 episodes|
|2009||The Listener||Daniel / Lisa||Episode: "Lisa Says"|
|2009–11||United States of Tara||Marshall Gregson||Main role, 36 episodes|
|2012–13||Delete||Daniel Gerson||2 episodes|
|2013||Family Guy||Toby (voice)||Episode: "Valentine's Day in Quahog"|
|2013||Newsreaders||Ben Hayflack||Episode: "31-Up"|
|2014||Sea of Fire||Rudy McAllister||Unsold pilot|
|2017||Atypical||Sam Gardner||Main role|
|2017||Room 104||Alex||Episode 10: "Red Tent"|
- "Person Details for Keir David P Gilchrist, "England and Wales Birth Registration Index, 1837–2008"". FamilySearch.
- "Kier Gilchrist - Yahoo!". Yahoo!.
- "Keir Gilchrist – United States of Tara Cast". United States of Tara Fan Site.
- "Mrs. Audrey Catherine Clark Peters Dec. 2, 1928 – Aug. 2, 2007". The Dowswell Family of North America. 2007. Retrieved September 3, 2010.
- Lumley, Elizabeth (2004). Canadian Who's Who 2004. University of Toronto Press. p. 1030. ISBN 0-8020-8892-9.
- "Kier Gilchrist Biography on IMDb". Internet Movie Database.
- "Biography: Keir Gilchrist". Teen Stars Online.[permanent dead link]
- Nordyke, Kimberly; Andreeva, Nellie (March 30, 2008). "Diablo Cody's 'Tara' adds players". The Hollywood Reporter.
- Kit, Borys (November 2, 2009). "Keir Gilchrist to star in 'Funny Story'". The Hollywood Reporter.
- McNary, Dave (October 16, 2014). "Keir Gilchrist's 'Dark Summer' Finds U.S. Home with IFC". Variety.
- Richford, Rhonda (May 22, 2015). "Cannes: Cinefondation Selection Winner Announced". The Hollywood Reporter.
- McNary, Dave (May 11, 2015). "James Caan, Keir Gilchrist to Star in Thriller 'The Waiting'". Variety.
|Wikimedia Commons has media related to Keir Gilchrist.|