Born October 21, 1976 · Dublin, Ireland
Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Actor | Sherlock | Jim Moriarty | |
| Actor | 1917 | 2019 | Lieutenant Leslie |
| Actor | Fleabag | Priest | |
| Actor | His Dark Materials | John Parry | |
| Actor | Alice Through the Looking Glass | 2016 | Addison Bennett |
| Actor | Saving Private Ryan | 1998 | Soldier on the Beach |
| Actor | Modern Love | Tobin | |
| Actor | Spectre | 2015 | Max Denbigh / C |
| Actor | All of Us Strangers | 2023 | Adam |
| Actor | Sherlock: The Abominable Bride | 2016 | Professor Moriarty |
| Actor | RIPLEY | Tom Ripley | |
| Actor | Handsome Devil | 2017 | Dan Sherry |
| Actor | Victor Frankenstein | 2015 | Roderick Turpin |
| Actor | Locke | 2013 | Donal (voice) |
| Actor | Pride | 2014 | Gethin |
| Actor | The Pursuit of Love | Lord Merlin | |
| Actor | Catherine Called Birdy | 2022 | Lord Rollo |
| Actor | Sherlock: The Final Problem | 2017 | Jim Moriarty |
| Actor | This Beautiful Fantastic | 2016 | Vernon |
| Actor | Dates | Christian | |
| Actor | Denial | 2016 | Anthony Julius |
| Actor | Wake Up Dead Man: A Knives Out Mystery | 2025 | Lee Ross |
| Actor | To Die For | 1995 | Band Member |
| Actor | Oslo | 2021 | Terje Rød-Larsen |
| Actor | Back in Action | 2025 | Baron |
| Actor | King Lear | 2018 | Edgar |
| Actor | The Town | Mark Nicholas | |
| Actor | The Delinquent Season | 2018 | Chris |
| Actor | Steel Country | 2019 | |
| Actor | Blackout (2012) | Detective Dalien Bevan | |
| Actor | Jimmy's Hall | 2014 | Father Seamus |
| Actor | Hamlet | 2018 | Hamlet |
| Actor | Swallows and Amazons | 2016 | Lazlov |
| Actor | My Life in Film | ||
| Actor | National Theatre Live: Vanya | 2024 | |
| Actor | The Stag | 2013 | Davin |
| Producer | Love Type D | 2019 | |
| Actor | Unlocking Sherlock | 2014 | Himself / Jim Moriarty |
| Actor | Miracle at Midnight | 1998 | Michael Grunbaum |
| Actor | The Scapegoat | 2012 | Paul |
| Actor | The Quatermass Experiment | 2005 | Vernon |
| Actor | National Theatre Live: Present Laughter | 2019 | Garry Essendine |
| Actor | Lennon Naked | 2010 | Paul McCartney |
| Actor | Nora | 2000 | Michael Bodkin |
| Actor | Sea Wall | 2012 | Alex |
| Actor | Dead Bodies | 2003 | Tommy McGann |
| Actor | Silent Things | 2010 | Jake |
| Actor | Earth's Seasonal Secrets | Narrator |