Mariah O'Brien (gebore 25 Junie 1971) is 'n Amerikaanse aktrise. Sy is bekend vir haar rolle in die rolprente Halloween: The Curse of Michael Myers (1995), The Mod Squad (1999), Being John Malkovich (1999), en Lovely & Amazing (2001). 1995: Halloween: The Curse of Michael Myers 1996: Welcome Says the Angel 1999: The Mod Squad 1999: Being John Malkovich 2000: Pussykat 2001: Lovely & Amazing 2001: Ordinary Madness 2001: Puzzled 2008: Going to Whatstock? 2013: Halloween: Acting Scared with Mariah O'Brien & J.C. Brandy 2013: Halloween: Cast and Crew Tributes to Donald Pleasence Mariah O'Brien in die Internet-rolprentdatabasis