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William Mapother
William Mapother 2014.jpg
Mapother in 2014
Born
William Reibert Mapother Jr.

(1965-04-17) April 17, 1965 (age 60)
Alma mater University of Notre Dame
Occupation Actor
Years active 1988–present
Relatives Tom Cruise (paternal first cousin)

William Reibert Mapother Jr. (born April 17, 1965) is an American actor. He is well-known for playing the character Ethan Rom in the TV show Lost. He also starred in the movie In the Bedroom and was featured in Another Earth.

About William Mapother's Early Life

William Mapother Jr. was born in Louisville, Kentucky. His parents were Louisa and William Reibert Mapother Sr. His father worked as a lawyer and was a judge in Louisville for a few years.

William Mapother Jr. is also the first cousin of famous actor Tom Cruise. Tom Cruise's full birth name is Thomas Cruise Mapother IV.

William Mapother's Acting Career

William Mapother is known as a character actor. This means he often plays interesting and sometimes intense roles. He had an important part in the movie In the Bedroom.

Many people recognize him as Ethan Rom from the TV series Lost. He appeared in 11 episodes of this popular show.

Independent Films and Voice Work

Mapother has also acted in many independent films. These include movies like The Lather Effect, Moola, Hurt, and Another Earth. He played a Native American fighter in the film The Burrowers.

In 2007, he was chosen to be on the National Board of Directors for the Screen Actors Guild. This is an important group for actors.

He also helped create the main character, Agent 47, for the 2012 video game Hitman: Absolution. He did the motion capture for the character. This means his movements were recorded for the game. In 2014, he was the main actor in the horror film The Atticus Institute.

William Mapother's Film Appearances

Year Title Role Notes
1989 Born on the Fourth of July Platoon Member – Vietnam
1998 Without Limits Bob Peters
Trickle Josh Riddell
The Unknown Cyclist By-Stander
1999 Magnolia WDKK Show Director's Assistant
2000 Mission: Impossible 2 Wallis
Almost Famous Bartender Scenes deleted
2001 In the Bedroom Richard Strout
Swordfish Gabriel's Crew
2002 Minority Report Hotel Clerk
Self Storage Graham
2003 The Kiss Peter
2004 Suspect Zero Bill Grieves
The Grudge Matthew Williams
2005 Lords of Dogtown Donnie
The Zodiac Dale Coverling
Chloe Doctor
2006 Ask The Dust Bill
The Lather Effect Jack
World Trade Center Jason Thomas
2007 Moola Bob
Moving McAllister Bob
2008 The Burrowers Will Parcher
Hurt Darryl Coltrane
2010 A Warrior's Heart David Milligan
2011 Another Earth John Burroughs
Citizen Gangster Detective Rhys
2012 FDR: American Hero! Dr. Ellington
2013 Underdogs Bill Burkett
2014 I Origins Darryl
2015 The Atticus Institute Dr. Henry West
Blackhat Rich Donahue
2016 Tell Me How I Die Dr. Jerrems
2024 Outlaw Posse Angel

William Mapother's TV Shows

Year Title Role Notes
2002 CSI: Crime Scene Investigation Douglas Sampson Episode: "Snuff"
The Pennsylvania Miners' Story John 'Flathead' Phillippi TV movie
Touched by an Angel Eddie 2 episodes
2003 Law & Order: Special Victims Unit Luke Edmunds Episode: "Rotten"
2004 Line of Fire Larry 2 episodes
CSI: Miami Pete Keller Episode: 'Lost Son"
NCIS Kyle Grayson Episode: "See No Evil"
Crossing Jordan Henry Bishop Episode: "Death Goes On"
2004–2010 Lost Ethan Rom 11 episodes
2005 The Inside Ronald Ewing Episode: "Skin and Bone"
Threshold Gunneson 2 episodes
2006 Robot Chicken Alien Bully / Leprechaun #2 2 episodes
2007 K-Ville Gordon Wix Episode: "Pilot"
Viva Laughlin Sweet Lenny Collins Episode: "What a Whale Wants"
WordGirl Guy Rich (voice) Episode: "The Young and the Meatless/Mr. Big's Colossal Mini-Golf"
2008 Skip Tracer Henry Hargrove Jr. TV movie
Lost: Missing Pieces Ethan Rom Episode: "Jack, Meet Ethan. Ethan? Jack."
Criminal Minds Ian Corbin Episode: "Paradise"
2009 Prison Break FBI Agent Chris Franco 2 episodes
2010 Human Target Sam Fisher Episode "Sanctuary"
I Heart Vampires William 2 episodes
Law & Order: Criminal Intent John Silvestri Episode: "Love on Ice"
2011–2014 The Mentalist Richard Haibach 4 episodes
2012 Burn Notice Garret Hartley Episode: "Shock Wave"
Justified Delroy Baker 2 episodes
2012 American Horror Story Misogynist Driver Episode: "Dark Cousin"
2013 Mad Men Randall Walsh Episode: "The Flood"
Castle Carl Matthews Episode: "The Disciple"
2014 Hawaii Five-0 Eric Porter Episode: "Ka Makuakaneka"
2015 Constantine Jacob Shaw Episode: "A Whole World Out There"
2015 Grimm Dwight Eleazar Episode: "The Believer"
2016 Supergirl Rudy Jones / The Parasite Episode: "Changing"
2017 MacGyver Daniel Horn Episode: "Hole Puncher"
2018 The Blacklist Bill Episode: "Ruin"
2020 9-1-1: Lone Star Bruce Ackerman Episode: "Monster Inside"
2021 FBI Most Wanted Travis Russel Episode: "Winner"

William Mapother's Video Games

Year Title Role Notes
2010 Fallout: New Vegas Colonel James Hsu
2012 Hitman: Absolution Agent 47 Motion capture
2016 Hitman Dino Bosco

See also

Kids robot.svg In Spanish: William Mapother para niños

  • List of people from the Louisville metropolitan area
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