David Hewlett is an English-born Canadian and American actor, writer, director and voice actor best known for his iconic role as the astrophysicist Dr. Meredith Rodney McKay in the science fiction television franchise Stargate (including Stargate SG-1, Stargate Atlantis, and Stargate Universe). He has also built a prolific career in psychological thrillers, horror films and major studio features.

Filmography

• 2024A Thousand Cuts — Cornelius
• 2024Gatekeepers — Bruce
• 2024Levels — Oliver
• Mistletoe Murders — Ray
• Guillermo del Toro's Cabinet of Curiosities — Masson
• 2022The Swearing Jar — Bill
• Clarice — Anthony Herman
• 2021Nightmare Alley — Dr. Elrood
• 2020Lie Exposed — Brian
• 2019All About Who You Know — Michael
• Departure — Bill Ratch
• Hudson & Rex — Nelson Dwyer
• 2019Lucky Day — Derrek Blarney
• 2019Midway — Husband Kimmel
• See — Tormada
• 2019Turkey Drop — Mr. Jacobs
• Warigami
• 2017The Shape of Water — Fleming
• Incorporated — Chad
• Private Eyes — Earl Baer
• Dark Matter — Talbor Calchek
• The Stanley Dynamic
• 2014Debug — Director, Writer
• 2013Haunter — Olivia's Father
• State of Syn — Aslin Kane
• 2011Morlocks — Radnor
• 2011Rage of the Yeti — Mills, Director
• 2011Rise of the Planet of the Apes — Douglas Hunsiker
• Suits — Nathan Burns
• 2010Splice — Barlow
• 2010The Whistleblower — Fred Murray
• 2009Helen — Frank
• 2009Stargate Atlantis: Fans' Choice — Rodney McKay
• Stargate Universe — Rodney McKay
• Murdoch Mysteries — Dilton Dilbert
• 2007A Dog's Breakfast — Patrick, Director, Writer, Story
• The Closer — Special Agent Jerry Moore
• 2004Boa vs. Python — Dr. Emmett
• 2004Darklight — Anders Raeborne
• 2004Ice Men — Bryan
• Stargate Atlantis — Rodney McKay
• 2003Foolproof — Lawrence Yeager
• 2003Nothing — Dave, Story
• 2002Cypher — Virgil C. Dunn
• Without a Trace — Fred Watkins
• And Never Let Her Go — Gerry Capano
• 2001Century Hotel — Michael
• Mutant X — Hector Freimark
• 2001The Triangle — Gus Gruber
• 2001Treed Murray — Murray
• The District — Frederick
• 2000autoerotica — Gord
• 1999Survivor — Doc
• 1999The Life Before This — Nick
• Twice in a Lifetime — Mr. Green
• 1998Cube — Worth
• 1997On the 2nd Day of Christmas — Mel
• 1997Under Pressure — Andrew
• 1996Elevated — Hank
• 1996Joe's Wedding — Rob Fitzgerald
• Traders — Grant Jansky
• ER — Mr. Schudy
• Monster Force
• 1993Dead Meat
• 1992A Savage Christmas: The Fall of Hong Kong — Walter Jenkins
• 1992Desire and Hell at Sunset Motel — Deadpan
• Forever Knight
• 1992Quiet Killer — Nyles Chapman
• 1992Split Images — Gary Hammond
• 1992The Boys of St. Vincent: 15 Years Later — Steven Lunney (age 25)
• 1992The First Circle — 'Ruska' Rostislav
• The Valour and the Horror — Walter Jenkins
• 1991Scanners II: The New Order — David Kellum
• 1990Deep Sleep — Terry
• 1990Where the Heart Is — Jimmy
• 1989The Penthouse — Joe Dobson
• My Secret Identity
• 1988Pin — Leon
• Friday the 13th: The Series — Cal
• 1987The Darkside — Chuckie
• 1984Exam

Appearances as themselves (2)

• Padre's Corner — Self
• 2013FANomenon — Self