Cary Elwes is the third son born to interior designer/shipping heiress Tessa Kennedy and the late portrait painter Dominick Elwes, and is the brother of producer/agent Cassian Elwes and artist Damian Elwes. He was born and raised in London and attended Harrow. After graduating from Harrow, he moved to the US and studied drama at Sarah Lawrence College. He left school after two years to begin his film career. Cary is well respected by colleagues and fans alike and considered by many to be one of the finest young actors working today. He is interested in history and says, "It's deliberate that a lot of my films have been period pieces". He is politically active for causes he believes in, such as protecting the environment and helping Native American peoples. He is married to Lisa Marie Kurbikoff, a stills photographer.
| Series | Wonder Woman | Henry Detmer | 2026 |
| Movie | Butterfly in the Typewriter | Kingsley Amis | 2026 |
| Series | M.I.A. | 2026 | |
| Movie | Dead Man's Wire | Michael Grable | 2026-01-09 |
| Movie | The Gettysburg Address | John P. Jones (voice) | 2025-11-19 |
| Movie | Mission: Impossible - The Final Reckoning | Denlinger | 2025-05-17 |
| Movie | Rebel Moon - Part Two: The Scargiver | The King | 2024-04-19 |
| Movie | The Ministry of Ungentlemanly Warfare | Brigadier Gubbins 'M' | 2024-04-18 |
| Movie | Operation Fortune: Ruse de Guerre | Nathan | 2023-01-04 |
| Movie | Mission: Impossible - Dead Reckoning Part One | Denlinger | 2023-07-08 |
| Movie | Rebel Moon - Part One: A Child of Fire | The King | 2023-12-15 |
| Movie | BlackBerry | Carl Yankowski | 2023-02-13 |
| Movie | Sweetwater | Ned Irish | 2023-04-14 |
| Movie | The Hyperions | Professor Ruckus Mandulbaum | 2022-11-24 |
| Movie | The Unholy | Bishop Gyles | 2021-03-31 |
| Movie | Burning at Both Ends | Jacques | 2021-09-30 |
| Movie | Last Train to Christmas | Roger Towers | 2021-12-18 |
| Movie | Best Sellers | Halpren Nolan | 2021-09-09 |
| Movie | A Castle for Christmas | Myles | 2021-11-26 |
| Movie | The Happy Days of Garry Marshall | Self | 2020-05-12 |
| Series | Home Movie: The Princess Bride | Prince Humperdinck | 2020-06-29 |
| Movie | Black Christmas | Professor Gelson | 2019-12-11 |
| Movie | Why Not Choose Love: A Mary Pickford Manifesto | D.W. Griffith | 2019-06-12 |
| Movie | Billionaire Boys Club | Andy Warhol | 2018-07-19 |
| Movie | Ghost Light | Alex Pankhurst | 2018-10-26 |
| Movie | Andre the Giant | Self | 2018-04-10 |
| Movie | We Don't Belong Here | Frank Harper | 2017-04-04 |
| Movie | Don't Sleep | Dr. Richard Sommers | 2017-09-29 |
| Movie | And the Winner Isn't | Self | 2017-12-08 |
| Movie | Indiscretion | Jake Simon | 2016-06-08 |
| Movie | Lost & Found | John Broman | 2016-02-22 |
| Movie | Elephant Kingdom | Rock (voice) | 2016-09-20 |
| Movie | The Queen of Spain | Gary Jones | 2016-11-25 |
| Movie | Sugar Mountain | Jim Huxley | 2016-12-09 |
| Movie | A Haunting in Cawdor | Lawrence O'Neill | 2015-05-01 |
| Movie | H8RZ | Principal Donato | 2015-07-17 |
| Series | The Art of More | Arthur Davenport | 2015-11-19 |
| Movie | Game Changer: The Legacy of Saw | Self | 2015-10-14 |
| Movie | Being Charlie | David Mills | 2015-09-14 |
| Movie | Reach Me | Kersey | 2014-03-14 |
| Movie | Beyond Beyond | 2014-03-21 | |
| Movie | In Security | Joshua | 2014-04-28 |
| Movie | Teen Lust | John | 2014-09-04 |
| Movie | Behaving Badly | Joseph Stevens | 2014-04-14 |
| Movie | A Bit of Bad Luck | Brooks | 2014-04-17 |
| Movie | Hansel and Gretel Get Baked | The Meter Man | 2013-02-19 |
| Movie | The Story of Luke | Paul | 2013-04-05 |
| Movie | Horizon | Max Hartman | 2013-06-06 |
| Movie | Justice League: The Flashpoint Paradox | Orin / Arthur Curry / Aquaman (voice) | 2013-07-30 |
| Movie | Anna Nicole | E. Pierce Marshall | 2013-06-29 |
| Movie | She Loves Me Not | Brady Olinson | 2013-06-09 |
| Movie | Camilla Dickinson | Rafferty Dickinson | 2012-05-20 |
| Series | Perception | British Intelligence Officer | 2012-07-09 |
| Movie | The Oogieloves in the Big Balloon Adventure | Bobby Wobbly | 2012-08-29 |
| Movie | Delhi Safari | 2012-10-19 | |
| Movie | A Mouse's Tale | Sir Thaddeus (voice) | 2012-10-11 |
| Movie | The Citizen | Miller | 2012-09-19 |
| Movie | Little Murder | Barry Fitzgerald | 2011-01-08 |
| Movie | New Year's Eve | Stan's Doctor | 2011-12-08 |
| Movie | Hellgate | Jeff Mathews | 2011-11-05 |
| Movie | The Adventures of Tintin | Pilot (voice) | 2011-10-24 |
| Movie | No Strings Attached | Dr. Stephen Metzner | 2011-01-21 |
| Movie | As Good As Dead | Ethan Belfrage | 2010-01-25 |
| Movie | Saw 3D | Dr. Lawrence Gordon | 2010-10-22 |
| Movie | Psych:9 | Dr. Clement | 2010-05-07 |
| Movie | Flying Lessons | Steven Jennings | 2010-02-04 |
| Movie | Toys in the Attic | Sir Handsome (english version) | 2009-03-05 |
| Movie | A Christmas Carol | Portly Gentleman / Dick Wilkins / Fiddler / Business Man (voice) | 2009-11-04 |
| Movie | The Alphabet Killer | Capt. Kenneth Shine | 2008-11-07 |
| Movie | Walk the Talk | Erik | 2007-06-15 |
| Movie | Georgia Rule | Arnold | 2007-05-10 |
| Movie | Haskett's Chance | Mark Haskett / Chris Dalness | 2006-01-01 |
| Movie | Pucked | Norman | 2006-02-10 |
| Series | Psych | Despereaux | 2006-07-07 |
| Series | Pope John Paul II | Young Karol Wojtyla | 2005-12-04 |
| Movie | Neo Ned | Dr. Magnuson | 2005-04-22 |
| Movie | Saw II | Dr. Lawrence Gordon (archive sound) (uncredited) | 2005-10-28 |
| Movie | Edison | Reigert | 2005-07-29 |
| Movie | American Crime | Albert Bodine | 2004-04-06 |
| Movie | Ella Enchanted | Edgar | 2004-04-09 |
| Movie | Saw | Dr. Lawrence Gordon | 2004-10-01 |
| Movie | The Riverman | Ted Bundy | 2004-09-06 |
| Movie | Wish You Were Dead | Mac "Macbeth" Wilson | 2002-05-21 |
| Movie | The Cat Returns | Baron (US) | 2002-07-19 |
| Movie | It Ain't As Easy As It Looks... (...a.k.a. the Making of 'The Cat's Meow') | Self | 2002-08-20 |
| Movie | Comic Book Villains | Carter | 2002-09-03 |
| Movie | The Cat's Meow | Thomas Ince | 2001-10-08 |
| Movie | Uprising | Dr. Fritz Hippler | 2001-11-04 |
| Series | Uprising | Dr. Fritz Hippler | 2001-11-04 |
| Movie | Shadow of the Vampire | Fritz Arno Wagner | 2000-08-30 |
| Movie | Race Against Time | Burke | 2000-07-23 |
| Series | Law & Order: Special Victims Unit | Unknown | 1999-09-20 |
| Movie | Cradle Will Rock | John Houseman | 1999-12-10 |
| Series | Family Guy | British Guard #1 | Doctor | Valet | 1999-01-31 |
| Movie | Quest for Camelot | Garrett (voice) | 1998-05-15 |
| Series | From the Earth to the Moon | Michael Collins | 1998-04-05 |
| Movie | The Pentagon Wars | Colonel James Burton | 1998-02-28 |
| Movie | Kiss the Girls | Det. Nick Ruskin | 1997-09-29 |
| Movie | The Informant | Lt. David Ferris | 1997-03-15 |
| Movie | Liar Liar | Jerry | 1997-03-21 |
| Movie | Twister | Jonas | 1996-05-10 |
| Series | The Outer Limits | Unknown | 1995-03-26 |
| Movie | The Chase | Steve Horsegroovy | 1994-03-04 |
| Movie | The Jungle Book | Captain William Boone | 1994-12-23 |
| Movie | Robin Hood: Men in Tights | Robin Hood | 1993-07-28 |
| Movie | The Crush | Nick Eliot | 1993-04-02 |
| Series | The X-Files | Brad Follmer | 1993-09-10 |
| Movie | Bram Stoker's Dracula | Lord Arthur Holmwood | 1992-11-13 |
| Movie | Leather Jackets | Dobbs | 1992-06-18 |
| Movie | Hot Shots! | Kent Gregory | 1991-07-31 |
| Movie | Days of Thunder | Russ Wheeler | 1990-06-27 |
| Movie | Glory | Maj. Cabot Forbes | 1989-12-15 |
| Movie | Never on Tuesday | Tow Truck Driver (uncredited) | 1989-04-13 |
| Series | Seinfeld | Unknown | 1989-07-05 |
| Movie | Maschenka | Ganin | 1987-03-05 |
| Movie | The Princess Bride | Westley | 1987-09-25 |
| Movie | Lady Jane | Guilford Dudley | 1986-02-07 |
| Movie | The Bride | Josef | 1985-08-16 |
| Movie | Oxford Blues | Lionel | 1984-08-24 |
| Movie | Another Country | James Harcourt | 1984-06-01 |
| Movie | Yesterday's Hero | Disco Dancer | 1979-04-24 |