Keir Gilchrist

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 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.

Early life 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.

Career 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 Gregson, the son of the lead character, on the Showtime comedy-drama series United States of Tara.

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.

In 2014, Gilchrist co-starred in the film It Follows.

In 2015, he played the lead role of Daniel Austin in the film Dark Summer, starred as John Lovett in The Stanford Prison Experiment and William in Len and Company, and had a role in the short drama film Share.

In 2016, he co-starred in the film The Good Neighbor.

In 2017, he starred in the film Heartthrob as Henry, directed by Chris Sivertson. In August of that year, he starred as Sam Gardner, a teen on the autism spectrum who is ready to have a girlfriend, in the Netflix comedy-drama Atypical. He continued with the role for four seasons until the show concluded on 9 July 2021.

Filmography +Key Denotes works that have not yet been released

Film Year Title Role Notes 2004 The Right Way Young David The Sadness of Johnson Joe Jangles Clint the Boy Doctor 2005 Horsie's Retreat Louie 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 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 The Stanford Prison Experiment John Lovett Share Dylan Short film The Heyday of the Insensitive Bastards Michael Len and Company William Tales of Halloween The Stranger Segment: "The Weak and the Wicked" 2016 The Good Neighbor Sean Turner Katie Says Goodbye Matty 2017 Heartthrob Henry Sinclair 2019 Castle in the Ground Polo boy 2020 Flashback Andre 2021 An Intrusion Layne 2023 The Featherweight Billy Papaleo Jr. 2024 Freaky TalesJosh Running on Empty Mort 2025 By Design Gary

Television Year Title Role Notes 2003 Queer as Folk Jim Stockwell Jr. Episode: "#3.9" 2004 Doc R.J. Mitchell Episode: "The Last Ride" 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" 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 Winner Josh McKellar Main role Life with Derek Jamie 3 episodes 2009 The Listener Daniel / Lisa Episode: "Lisa Says" 2009–2011 United States of Tara Marshall Gregson Main role 2012–2013 Delete Daniel Gerson 2 episodes 2013 Family Guy Toby (voice) Episode: "Valentine's Day in Quahog" Newsreaders Ben Hayflack Episode: "31-Up" 2014 Sea of Fire Rudy McAllister Unsold pilot 2017–2021 Atypical Sam Gardner Main role 2017 Room 104 Alex Episode 10: "Red Tent" 2023 Love & Death Ron Adams Miniseries 2025 The Walking Dead: Dead City Benjamin Pierce Main role

Music videos Year Artist Song Notes 2016 Gatecreeper "Desperation" One of the two charactersThe Body"The Myth Arc"