William Mapother
- Known for
- Acting
- Born
- Apr 17, 1965 (age 61)
- Place of birth
- Louisville, Kentucky, USA
- Credits
- 80
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.
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Known for
Filmography
SHED
2026Movie
Dr. Levin
The Leader
2026Movie
Reverend Applewhite
Suits LA
2025TV
Greg Fisher
Outlaw Posse
2024Movie
Angel
Black Girl Missing
2023Movie
Russell
On Sacred Ground
2023Movie
Daniel McKinney
Son of Monarchs
2021Movie
Bob
A Little Dream
2021TV
Wayne
9-1-1: Lone Star
2020TV
Bruce Ackerman
FBI: Most Wanted
2020TV
Travis Russell
MacGyver
2016TV
The Client / Daniel Holt
Tell Me How I Die
2016Movie
Dr. Jerrems
Rush Hour
2016TV
Principal
Supergirl
2015TV
Dr. Rudy Jones / Parasite
Minority Report
2015TV
Charlie Peele
Powers
2015TV
Todd Secor
Blackhat
2015Movie
Rich Donahue
The Atticus Institute
2015Movie
Dr. Henry West
Constantine
2014TV
Jacob Shaw
American War Generals
2014Movie
Self - Narrator
I Origins
2014Movie
Darryl Mackenzie
Drew Peterson: Untouchable
2014Movie
Glenn Levecke
The Blacklist
2013TV
Bill
Escape from Polygamy
2013Movie
Ervil
Underdogs
2013Movie
Bill Burkett
Jobs
2013Movie
Calligraphy Professor
It's Dark Here
2013Movie
David Tennies
Static
2012Movie
Greg Wagner
FDR: American Badass!
2012Movie
Dr. Ellington
Darnell Dawkins: Mouth Guitar Legend
2012Movie
Pastor Jenkins
A Warrior's Heart
2011Movie
Coach David Milligan
Grimm
2011TV
Dwight Eleazer
American Horror Story
2011TV
Driver
Edwin Boyd: Citizen Gangster
2011Movie
Detective Rhys
Another Earth
2011Movie
John Burroughs
Portraits in Dramatic Time
2011Movie
Hawaii Five-0
2010TV
Eric Porter
Justified
2010TV
Delroy Baker
Human Target
2010TV
Sam Fisher
Hurt
2009Movie
Darryl Coltrane
Celebrity Ghost Stories
2009TV
Self
Castle
2009TV
Carl Matthews
The Mentalist
2008TV
Richard Haibach
The Burrowers
2008Movie
Will Parcher
Viva Laughlin
2007TV
K-Ville
2007TV
Moving McAllister
2007Movie
Bob
Mad Men
2007TV
Randall Walsh
Burn Notice
2007TV
Garret Hartley
Moola
2007Movie
Steve
World Trade Center
2006Movie
Marine Sergeant Thomas
The Lather Effect
2006Movie
Jack
Ask the Dust
2006Movie
Bill
Criminal Minds
2005TV
Ian Corbin
Threshold
2005TV
The Zodiac
2005Movie
Dale Coverling
The Inside
2005TV
Ronald Ewing
Lords of Dogtown
2005Movie
Donnie
The Grudge
2004Movie
Matthew Williams
Lost
2004TV
Ethan Rom
Suspect Zero
2004Movie
Bill Grieves
NCIS
2003TV
Kyle Grayson
The Kiss
2003Movie
Peter
CSI: Miami
2002TV
Pete Keller
Minority Report
2002Movie
Hotel Clerk
The Pennsylvania Miners' Story
2002Movie
John 'Flathead' Phillippi
Vanilla Sky
2001Movie
Clubgoer (uncredited)
In the Bedroom
2001Movie
Richard Strout
Law & Order: Criminal Intent
2001TV
John Silvestri
Crossing Jordan
2001TV
Henry Bishop
Swordfish
2001Movie
Gabriel's Crew
CSI: Crime Scene Investigation
2000TV
Douglas Sampson
Mission: Impossible II
2000Movie
Wallis
Magnolia
1999Movie
WDKK Show Director's Assistant
Law & Order: Special Victims Unit
1999TV
Luke Edmunds
The Unknown Cyclist
1998Movie
By Stander
Without Limits
1998Movie
Bob Peters
Touched by an Angel
1994TV
Eddie
Born on the Fourth of July
1989Movie
Platoon - Vietnam
The Possession at Gladstone Manor
Movie
Henry Gladstone