William Mapother in 2014.
|Born||William Reibert Mapother, Jr.
April 17, 1965
Louisville, Kentucky, U.S.
|Relatives||Tom Cruise (paternal first cousin)|
Mapother was born in Louisville, Kentucky, the son of Louisa (née Riehm) and William Reibert Mapother, Sr. He is of English, Irish, and predominantly German ancestry. He is a first cousin of actor Tom Cruise (whose real name is Thomas Cruise Mapother IV). Mapother has appeared in five movies starring Cruise. He had cameo roles in Minority Report and Vanilla Sky, and supporting roles in Mission: Impossible 2, Born on the Fourth of July, and Magnolia. Mapother has two sisters, Katherine and Amy (an occasional actress, born February 17, 1974), both born in Louisville, Kentucky. His father was an attorney, bankruptcy consultant and judge in Louisville, between 1967 and 1970; William Sr., died on June 22, 2006, after fighting lung cancer and pulmonary fibrosis.
Mapother has become widely known as a character actor, who sometimes plays scary or otherwise dark characters. He played a pivotal role in Todd Field's In the Bedroom, and is perhaps best known as Ethan Rom in the TV show Lost. The character was killed off early in season 1 but appeared in seven later episodes mainly through flashbacks, once due to time travel and another in an alternate timeline. In all, he appeared in eleven episodes of Lost.
Mapother has also had considerable roles in a series of independent films, such as The Lather Effect, Moola, Hurt, and Another Earth. Mapother starred in The Burrowers as a former Native American fighter who joins a posse to help find missing white settlers, only to discover that the hunters have become the hunted.
In September 2007, he was elected to a three-year term on the National Board of Directors for the Screen Actors Guild.
He has provided the motion capture work for Agent 47, the main character in the 2012 video game Hitman: Absolution and also provided the voice before series veteran David Bateson was recast. In 2014, he played the lead in the paranormal horror film The Atticus Institute.
|1989||Born on the Fourth of July||Platoon Member – Vietnam|
|1998||Without Limits||Bob Peters|
|1998||The Unknown Cyclist||By-Stander|
|1999||Magnolia||WDKK Show Director's Assistant|
|2000||Mission: Impossible 2||Wallis|
|2000||Almost Famous||Bartender||scenes deleted|
|2001||In the Bedroom||Richard Strout|
|2002||Minority Report||Hotel Clerk|
|2004||Suspect Zero||Bill Grieves|
|2004||The Grudge||Matthew Williams|
|2005||Lords of Dogtown||Donnie|
|2005||The Zodiac||Dale Coverling|
|2006||Ask The Dust||Bill|
|2006||The Lather Effect||Jack|
|2006||World Trade Center||Jason Thomas|
|2008||The Burrowers||Will Parcher|
|2010||A Warrior's Heart||David Milligan|
|2011||Another Earth||John Burroughs|
|2011||Edwin Boyd: Citizen Gangster||Detective Rhys|
|2012||FDR: American Badass||the doctor|
|2015||The Atticus Institute||Dr. Henry West|
|2016||Tell Me How I Die||Dr. Jerrems|
|2002||CSI: Crime Scene Investigation||Douglas Sampson||1 episode|
|2002||The Pennsylvania Miners' Story||John 'Flathead' Phillippi|
|2002||Touched by an Angel||Eddie||2 episodes|
|2003||Law & Order: Special Victims Unit||Luke Edmunds||1 episode|
|2004||Line of Fire||Larry||2 episodes|
|2004||CSI: Miami||Pete Keller||1 episode|
|2004||NCIS||Kyle Grayson||1 episode|
|2004-2010||Lost||Ethan Rom||11 episodes|
|2005||The Inside||Ronald Ewing||1 episode|
|2004||Crossing Jordan||Henry Bishop||1 episode|
|2006||Robot Chicken||Alien Bully / Leprechaun #2||2 episodes|
|2007||K-Ville||Gordon Wix||1 episode|
|2007||Viva Laughlin||Sweet Lenny Collins||1 episode|
|2007||WordGirl||Guy Rich (voice)||1 episode|
|2008||Skip Tracer||Henry Hargrove Jr.|
|2008||Lost: Missing Pieces||Ethan Rom||1 episode|
|2008||Criminal Minds||Ian Corbin||1 episode|
|2009||Prison Break||FBI Agent Chris Franco||2 episodes|
|2011-2014||The Mentalist||Richard Haibach||4 episodes|
|2012||Justified||Delroy Baker||2 episodes|
|2012||American Horror Story||Misogynist Driver||1 episode|
|2013||Mad Men||Randall Walsh||1 episode|
|2013||Castle||Carl Matthews||1 episode|
|2015||Constantine||Jacob Shaw||1 episode|
|2015||Grimm||Dwight Eleazar||"The Believer"|
|2016||Supergirl||Rudy Jones / The Parasite||1 episode|
|2017||MacGyver (2016 TV Series)||Daniel Horn||1 Episode "Hole Puncher"|