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William Mapother
Actor

William Mapother

1965Louisville, Kentucky, USA43 Movies34 TV Shows

William Reibert Mapother Jr. (/ˈmeɪpɒθər/; born April 17, 1965) is an American actor, known for his role as Ethan Rom on the television series Lost and starring in the film In the Bedroom. He is also known for the film Another Earth.

Filmography

More Movies

43 titles
Outlaw Posse
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Angel
4.5

Outlaw Posse

2024
Black Girl Missing
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Russell
7.3

Black Girl Missing

2023
On Sacred Ground
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Daniel McKinney
5.3

On Sacred Ground

2023
Son of Monarchs
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Bob
5.8

Son of Monarchs

2021
Tell Me How I Die
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Dr. Jerrems
5.4

Tell Me How I Die

2016
Blackhat
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Rich Donahue
5.5

Blackhat

2015
The Atticus Institute
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Dr. Henry West
5.8

The Atticus Institute

2015
American War Generals
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Self - Narrator

American War Generals

2014
I Origins
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Darryl Mackenzie
7.6

I Origins

2014
Drew Peterson: Untouchable
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Glenn Levecke
5.3

Drew Peterson: Untouchable

2014
Escape from Polygamy
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Ervil
6.8

Escape from Polygamy

2013
Underdogs
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Bill Burkett
5.7

Underdogs

2013
Jobs
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Calligraphy Professor
6.1

Jobs

2013
It's Dark Here
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David Tennies

It's Dark Here

2013
Static
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Greg Wagner
5.3

Static

2012
FDR: American Badass!
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Dr. Ellington
5.1

FDR: American Badass!

2012
Darnell Dawkins: Mouth Guitar Legend
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Pastor Jenkins

Darnell Dawkins: Mouth Guitar Legend

2012
A Warrior's Heart
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Coach David Milligan
5.4

A Warrior's Heart

2011
Edwin Boyd: Citizen Gangster
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Detective Rhys
5.6

Edwin Boyd: Citizen Gangster

2011
Another Earth
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John Burroughs
6.7

Another Earth

2011
Portraits in Dramatic Time
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8.0

Portraits in Dramatic Time

2011
Hurt
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Darryl Coltrane
4.6

Hurt

2009
The Burrowers
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Will Parcher
5.9

The Burrowers

2008
Moving McAllister
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Bob
5.0

Moving McAllister

2007
Moola
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Steve
3.8

Moola

2007
World Trade Center
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Marine Sergeant Thomas
6.1

World Trade Center

2006
The Lather Effect
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Jack
4.8

The Lather Effect

2006
Ask the Dust
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Bill
5.4

Ask the Dust

2006
The Zodiac
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Dale Coverling
5.4

The Zodiac

2005
Lords of Dogtown
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Donnie
7.1

Lords of Dogtown

2005
The Grudge
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Matthew Williams
5.9

The Grudge

2004
Suspect Zero
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Bill Grieves
5.5

Suspect Zero

2004
The Kiss
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Peter
5.1

The Kiss

2003
Minority Report
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Hotel Clerk
7.3

Minority Report

2002
The Pennsylvania Miners' Story
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John 'Flathead' Phillippi

The Pennsylvania Miners' Story

2002
Vanilla Sky
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Clubgoer (uncredited)
6.8

Vanilla Sky

2001
In the Bedroom
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Richard Strout
6.9

In the Bedroom

2001
Swordfish
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Gabriel's Crew
6.3

Swordfish

2001
Mission: Impossible II
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Wallis
6.1

Mission: Impossible II

2000
Magnolia
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WDKK Show Director's Assistant
7.7

Magnolia

1999
The Unknown Cyclist
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By Stander
4.3

The Unknown Cyclist

1998
Without Limits
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Bob Peters
6.6

Without Limits

1998
Born on the Fourth of July
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Platoon - Vietnam
7.0

Born on the Fourth of July

1989
Television

More TV Shows

34 titles
Suits LA
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Greg Fisher
6.9

Suits LA

2025
A Little Dream
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Wayne

A Little Dream

2021
9-1-1: Lone Star
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Bruce Ackerman
8.0

9-1-1: Lone Star

2020
FBI: Most Wanted
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Travis Russell
7.7

FBI: Most Wanted

2020
MacGyver
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The Client / Daniel Holt
7.3

MacGyver

2016
Rush Hour
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Principal
5.2

Rush Hour

2016
Supergirl
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Dr. Rudy Jones / Parasite
7.3

Supergirl

2015
Minority Report
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Charlie Peele
6.0

Minority Report

2015
Powers
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Todd Secor
6.6

Powers

2015
Constantine
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Jacob Shaw
7.8

Constantine

2014
The Blacklist
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Bill
7.6

The Blacklist

2013
Grimm
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Dwight Eleazer
8.3

Grimm

2011
American Horror Story
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Driver
8.1

American Horror Story

2011
Hawaii Five-0
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Eric Porter
7.8

Hawaii Five-0

2010
Justified
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Delroy Baker
8.0

Justified

2010
Human Target
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Sam Fisher
7.2

Human Target

2010
Celebrity Ghost Stories
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Self
7.3

Celebrity Ghost Stories

2009
Castle
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Carl Matthews
8.0

Castle

2009
The Mentalist
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Richard Haibach
8.4

The Mentalist

2008
Viva Laughlin
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2.5

Viva Laughlin

2007
K-Ville
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6.8

K-Ville

2007
Mad Men
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Randall Walsh
8.1

Mad Men

2007
Burn Notice
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Garret Hartley
7.5

Burn Notice

2007
Criminal Minds
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Ian Corbin
8.3

Criminal Minds

2005
Threshold
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7.0

Threshold

2005
The Inside
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Ronald Ewing
7.3

The Inside

2005
Lost
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Ethan Rom
7.9

Lost

2004
NCIS
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Kyle Grayson
7.6

NCIS

2003
CSI: Miami
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Pete Keller
7.7

CSI: Miami

2002
Law & Order: Criminal Intent
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John Silvestri
7.6

Law & Order: Criminal Intent

2001
Crossing Jordan
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Henry Bishop
7.2

Crossing Jordan

2001
CSI: Crime Scene Investigation
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Douglas Sampson
7.6

CSI: Crime Scene Investigation

2000
Law & Order: Special Victims Unit
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Luke Edmunds
7.9

Law & Order: Special Victims Unit

1999
Touched by an Angel
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Eddie
7.2

Touched by an Angel

1994