- 2008: Portrayed former Prime Minister Tony Blair in Oliver Stone's controversial biopic "W."
- 2007: Reprised role of Mister Fantastic for the sequel "Fantastic Four: Rise of the Silver Surfer"
- 2007: Portrayed famous abolitionist William Wilberforce in "Amazing Grace"
- 2005: Cast as Mister Fantastic (Reed Richards) in Marvel's "Fantastic Four"
- 2004: Cast as Lancelot opposite Clive Owen in "King Arthur"
- 2001: Cast in Ridley Scott's "Black Hawk Down"
- 2001: Reprised title role for the TV-movies "Hornblower: Mutiny" and "Hornblower: Retribution" (aired on ITV and A&E)
- 2001: Had small role as half of a gay couple (with best friend Matthew Rhys) in "Very Annie Mary"
- 2000: Supported Glenn Close in "102 Dalmatians"
- 1999: Portrayed a British soldier in Bosnia for the BBC drama series "Warriors"
- 1999: Cast in the lead role of Pip in the BBC TV production of Charles Dickens' "Great Expectations"
- 1998: Played the title role in "Solomon & Gaenor"; film earned an Oscar nomination for Best Foreign-Language Film
- 1998: Cast in the title role of "Hornblower" a British miniseries (aired on ITV and A&E)
- 1997: First international role as Officer Harold Lowe in James Cameron's blockbuster film "Titanic"
- 1997: Made film debut as Oscar Wilde's lover John Gray in "Wilde"
- 1996: Played the lead role in the British TV-remake "Poldark"
- 1987: Cast in the Welsh soap opera "Pobol y Cwm (People of the Valley)"
- 1986: Appeared at the age of 13 in a Welsh television film called "Austin"
- While at RADA, was cast in Ibsen's "Hedda Gabler" as the husband of the lead character
- At age 18, began attending the Royal Academy of Dramatic Art in London




