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Richard Scott Harmon (born August 18, 1991) is a Canadian actor. His roles on television include Jasper Ames in The Killing (2011–2012), Julian Randol on Continuum (2012–2015), and John Murphy in The 100 (2014–2020). Harmon received critical praise for his role in the 2013 film If I Had Wings, and had a supporting role as Erik Campbell in the horror film Final Destination Bloodlines (2025).
| † | Denotes film or TV productions that have not yet been released |
| Year | Title | Role | Notes | Ref. |
| 2007 | Trick 'r Treat | Vampire kid | ||
| 2010 | Percy Jackson & the Olympians: The Lightning Thief | Smart ass kid | ||
| Triple Dog | Stefan | |||
| 2011 | Judas Kiss | Danny Reyes Jr. | ||
| 2012 | Girl in Progress | Bad boy | ||
| Rufus | Clay | |||
| Grave Encounters 2 | Alex Wright | |||
| 2013 | Evangeline | Michael Konnor | ||
| If I Had Wings | Alex Taylor | |||
| 2014 | Cruel and Unusual | William | ||
| 2015 | The Age of Adaline | Tony | ||
| 2018 | I Still See You | Kirk Lane | ||
| 2019 | Crypto | Jake | ||
| 2020 | Darkness Falls | Adam Witver | ||
| The Return | Roger | |||
| Woodland | Jake | |||
| 2021 | A Cinderella Story: Starstruck | Kale | ||
| 2022 | Margaux | Clay | ||
| 2024 | Lowlifes | Vern | ||
| 2025 | Final Destination Bloodlines | Erik Campbell | ||
| TBA | Fu † | Jeremy | ||
| Pitfall † | Lars | Post-production | ||
| One Mile † | Ray Dixon | Post-production |
| Year | Title | Role | Notes |
| 2003 | Jeremiah | Madison | Episode: "The Mysterious Mister Smith" |
| 2005 | School of Life | Timmy | Television film |
| Painkiller Jane | Squeak | Television film | |
| 2006 | Medium | Stephen Cambell | Episode: "The Boy Next Door" |
| Da Vinci's City Hall | Andrew | 2 episodes | |
| 2007 | Flash Gordon | Tee-Jay's friend | Episode: "Ascension" |
| Aliens in America | Junior | Episode: "Junior Prank" | |
| To Be Fat Like Me | Kyle | Television film | |
| 2008 | Left Coast | Television film | |
| 2009 | Smallville | Gaunt teenage addict | Episode: "Turbulence" |
| Wolf Canyon | Intern | Television film | |
| 2010 | Caprica | Tad/Heracles | 2 episodes |
| Riese: Kingdom Falling | Prototype | 7 episodes | |
| Fringe | Teenager | Episode: "White Tulip" | |
| Shattered | Trevor Stanwood | Episode: "Sound of a Strap" | |
| Dear Mr. Gacy | Victim | ||
| Tower Prep | Ray Snider | Recurring role | |
| The Cult | Lucas | Television film | |
| 2011 | Clue | Andrew | Episode: "School for Conspiracy" |
| The Haunting Hour: The Series | Bobby/Caleb | 2 episodesWon – Leo Award for Best Performance in a Youth or Children's Program or Series (2011) | |
| Time After Time | Ricky | Television film | |
| 2011–2012 | The Killing | Jasper Ames | Recurring role (seasons 1–2) |
| 2012 | The Secret Circle | Ian | 2 episodes |
| The Pregnancy Project | Aaron | Television film | |
| The Wishing Tree | Andrew Breen | Television film | |
| 2012–2015 | Continuum | Julian Randol | Recurring roleWon – Leo Award for Best Supporting Performance by a Male in a Dramatic Series (2013) |
| 2013 | Rogue | Lee | 2 episodes |
| One Foot in Hell | Cory | Television film | |
| Forever 16 | Jared | Television film | |
| Scarecrows | Tyler | Television film | |
| 2013–2014 | Bates Motel | Richard Sylmore | 4 episodes |
| 2014 | Intruders | Bix | Episode: "There Is No End" |
| Christmas Icetastrophe | Tim Ratchet | Television film | |
| 2014–2020 | The 100 | John Murphy | Recurring role (seasons 1–2); main role (seasons 3–7)Won – Leo Award for Best Supporting Performance by a Male in a Dramatic Series (2014) Nominated – Leo Award for Best Guest Performance by a Male in a Dramatic Series (2015) Nominated – UBCP/ACTRA Award for Best Actor (2017) Nominated – Leo Award for Best Supporting Performance by a Male in a Dramatic Series (2018) Nominated – Leo Award for Best Supporting Performance by a Male in a Dramatic Series (2020) |
| 2015 | CSI: Crime Scene Investigation | Kyle Jessup | Episode: "Merchants of Menace" |
| Garage Sale Mystery | William Carson | Episode: "The Deadly Room" | |
| A Mother's Instinct | Seth Durand | Television film Nominated – Leo Award for Best Lead Performance By A Male in a Television Movie (2016) | |
| The Hollow | Television film | ||
| 2019 | Van Helsing | Max Borman | Recurring role (season 4) Won – Leo Award for Best Guest Performance by a Male in a Dramatic Series (2020) Nominated – UBCP/ACTRA Award for Best Supporting Performance, Male (2020) |
| 2021 | Kung Fu | TJ | Episode: "Destiny" |
| 2022 | Fakes | Tryst | Main role |
| Game, Set, Love | Will | Television film | |
| 2023 | The Flash | Owen Mercer / Captain Boomerang | Recurring role |
| The Night Agent | Elliot Rome | Recurring role | |
| The Good Doctor | Eddie Richter | Episode: "Blessed" | |
| 2024 | Tracker | Matt Winslow | Episode: "Springland" |
| 2025 | Alert: Missing Persons Unit | Jeffrey Evans | Episode: "April" |
| Law & Order Toronto: Criminal Intent | Curtis Gibbons | Episode: "Disposable People" | |
| TBA | Memory of a Killer † | Joe |