Film:
* The Firm (1989): He played the role of "Big" Ernestine.
* The Crying Game (1992): He played the role of Jody.
* The Secret of Roan Inish (1994): He played the role of Finn.
* The Wind in the Willows (2006): He played the voice of "Badger".
* The Dark Knight Rises (2012): He played the role of "Prisoner".
* The Hunger Games: Catching Fire (2013): He played the role of "Beetee".
* Guardians of the Galaxy Vol. 2 (2017): He played the role of "Ravager Leader".
* The Batman (2022): He played the role of "The Riddler's Henchman".
Television:
* The Bill (1990s): He played the role of "DCI Jack Meadows" in several episodes.
* The Inspector Lynley Mysteries (2001-2008): He played the role of "DS Havers" in several episodes.
* The Last Detective (2003-2006): He played the role of "DI Jack " in all 3 series.
* The Sarah Jane Adventures (2007-2011): He played the role of "Clyde Langer's father" in several episodes.
* Luther (2010-2019): He played the role of "DS Martin " in several episodes.
* Doctor Who (2010, 2017): He played the role of "The Silurian" in several episodes.
* Line of Duty (2012-2021): He played the role of "Superintendent " in several episodes.
* The Crown (2016-2022): He played the role of "Harold Wilson" in several episodes.
* The Witcher (2019-2023): He played the role of "The Witcher" in several episodes.
* The Sandman (2022): He played the role of "Death" in several episodes.
This is just a selection of his work, and he has starred in many other film and television projects over the years.