Peter O'Brien (gebore 25 Maart 1960) is 'n Australiese akteur en skrywer. Hy is bekend vir sy rolle in die rolprente The Return (2006) en X-Men Origins: Wolverine (2009), en in die televisiereeks Queer as Folk (1999). 1990: A Kink in the Picasso 1999: Federation 2003: The Pact 2006: The Return 2009: X-Men Origins: Wolverine 2012: Almayer's Folly 2013: Love of my Life 2013: Aim High in Creation 2017: Lake Alice Breaker 1986: The Flying Doctors 1992: Crime Story 1994: The All New Alexei Sayle Show 1994: Cardiac Arrest 1997: Spellbinder: Land of the Dragon Lord 1998: Minty 1999: Queer as Folk 1999: See How They Run 2000: Deceit 2002: White Collar Blue 2004: Through My Eyes 2008: Underbelly 2009: :30 Seconds 2018: Tidelands 2018: Elemental: Hydrogen Vs. Hindenburg Tango Amargo 2001: The Innocent 2002: White Collar Blue 2012: Undertow 2014: The Killing Field 2007: Creation of a Nightmare: The Making of 'The Return' Peter O'Brien in die Internet-rolprentdatabasis