Filmography
| Year | Title | Role | Notes |
|---|---|---|---|
| 1993 | Taggart | Bill Hamilton | 1 Episode |
| 1994 | The All New Alexei Sayle Show | Dr Scott Jordan | Regular cast member, series 1 |
| 1995–1996 | Cardiac Arrest | Mr. Cyril "Scissors" Smedley | Regular cast member, series 2 & 3 |
| 1996 | Hotel de Love | Norman Carey | |
| 1999 | Queer as Folk (UK version) | Cameron Roberts | Regular Cast Member |
| 1999 | Sabrina Down Under | Dr. Julian Martin | |
| 1999 | Sally Marshall Is Not an Alien | David lawson | Supporting Cast Member |
| 2000–2001 | Water Rats | Matthew Grierson | 3 Episodes |
| 2001 | Relic Hunter | Allan Devaut | 1 Episode |
| 2002 | Young Lions | Daryll Flynn | 1 Episode |
| The Pact | Roy Folksdale | ||
| 2002–2003 | White Collar Blue | Det. Joe Hill | Main Cast Member |
| 2003 | Code 11-14 | Det. McElroy | |
| 2004 | Through My Eyes: The Lindy Chamberlain Story | Ian Barker Q.C. | |
| The Bill | DI Peter Cavanaugh | 6 Episodes | |
| 2005 | Blue Heelers | Dr. Peter Nelson | 2 Episodes |
| Hell Has Harbour Views | Tim Sullivan | ||
| 2006 | The Return | Terry Stahl | |
| Nightmares and Dreamscapes: From the Stories of Stephen King | Keenan | ||
| Fatal Contact: Bird Flu in America | Alan | ||
| 2007 | Gossip Girl | Photographer | 1 Episode |
| Casualty | Theo 'Stitch' Lambert | 18 Episodes | |
| 2008 | City Homicide | Warren Endicot | 1 Episode |
| 2009 | Underbelly: A Tale of Two Cities | George Freeman | 10 Episodes |
| A World Away | John | ||
| Doctor Who | Ed Gold | 1 Episode | |
| X-Men Origins: Wolverine | John Howlett | ||
| Rogue Nation | John Stephen Jr | ||
| All Saints | Sam Whittaker | 1 Episode | |
| 30 Seconds | Bill Brooker | Regular Cast Member | |
| 2010 | Underbelly: The Golden Mile | George Freeman | 3 Episodes |
| Dance Academy | Sebastian | 2 episodes |
Read more about this topic: Peter O'Brien (actor)