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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.

Keir Gilchrist
Keir Gilchrist.jpg
Keir David Peters Gilchrist

(1992-09-28) September 28, 1992 (age 26)
Camden, London, England, UK[1]
Years active2003–present
RelativesDouglas Peters (grandfather)


Early lifeEdit

Gilchrist was born in Camden Town, London, to Canadian parents Catherine (née Peters) and Ian Gilchrist.[2][3] His maternal grandfather was Canadian banker, economist, and politician Douglas Peters, and his uncle is economist David Wilfrid Peters.[4][5] Gilchrist spent his early years in London, before relocating to Boston, Massachusetts during his childhood,[6] 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.[7]

In 2009, Gilchrist won the lead role of Craig Gilner in the film It's Kind of a Funny Story, which premiered at the Sundance Film Festival in January 2010.[8] In 2014, Gilchrist co-starred with Maika Monroe and Jake Weary in the film It Follows. In 2015, he played the lead role of Daniel Austin in the film Dark Summer,[9] starred as John Lovett in The Stanford Prison Experiment and William in Len and Company, and portrayed the boyfriend of Taissa Farmiga's character in the Cannes Film Festival-winning short drama film Share.[10] In 2016, he and James Caan co-starred in the film The Good Neighbor.[11] In 2017, he starred in the film Heartthrob, directed by Chris Siverston. In August 2017, he began starring as Sam Gardner, a teen with autism, in the Netflix dramedy Atypical.



Year Title Role Notes
2004 The Right Way Young David
2005 Horsie's Retreat Louie
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
2014 It Follows Paul
2015 Dark Summer Daniel Austin
2015 The Stanford Prison Experiment John Lovett
2015 Share Dylan Short film
2015 The Heyday of the Insensitive Bastards Michael
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 Hearthrob Henry Sinclair
2019 The Education of Fredrick Fitzell Andre
2019 Castle in the Ground Post-production


Year Title Role Notes
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"
2009–2011 United States of Tara Marshall Gregson Main role, 36 episodes
2012–2013 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–present Atypical Sam Gardner Lead role
2017 Room 104 Alex Episode 10: "Red Tent"

Music VideoEdit

Year Band/Artist Song Title Notes
2016 Gatecreeper Desperation One of the two characters


  1. ^ "Person Details for Keir David P Gilchrist, "England and Wales Birth Registration Index, 1837–2008"". FamilySearch.
  2. ^ "Kier Gilchrist - Yahoo!". Yahoo!.
  3. ^ "Keir Gilchrist – United States of Tara Cast". United States of Tara Fan Site. Archived from the original on 2011-07-18.
  4. ^ "Mrs. Audrey Catherine Clark Peters Dec. 2, 1928 – Aug. 2, 2007". The Dowswell Family of North America. 2007. Archived from the original on July 26, 2011. Retrieved September 3, 2010.
  5. ^ Lumley, Elizabeth (2004). Canadian Who's Who 2004. University of Toronto Press. p. 1030. ISBN 978-0-8020-8892-5.
  6. ^ "Biography: Keir Gilchrist". Teen Stars Online.[permanent dead link]
  7. ^ Nordyke, Kimberly; Andreeva, Nellie (March 30, 2008). "Diablo Cody's 'Tara' adds players". The Hollywood Reporter.
  8. ^ Kit, Borys (November 2, 2009). "Keir Gilchrist to star in 'Funny Story'". The Hollywood Reporter.
  9. ^ McNary, Dave (October 16, 2014). "Keir Gilchrist's 'Dark Summer' Finds U.S. Home with IFC". Variety.
  10. ^ Richford, Rhonda (May 22, 2015). "Cannes: Cinefondation Selection Winner Announced". The Hollywood Reporter.
  11. ^ McNary, Dave (May 11, 2015). "James Caan, Keir Gilchrist to Star in Thriller 'The Waiting'". Variety.

External linksEdit