William Mapother
Acting
78
Acting Credits
Biography
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. Description above from the Wikipedia article William Mapother, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Known For
Filmography
The Leader
2026
as Reverend Applewhite
Suits LA
2025
as Greg Fisher
Outlaw Posse
2024
as Angel
On Sacred Ground
2023
as Daniel McKinney
Black Girl Missing
2023
as Russell
Son of Monarchs
2021
as Bob
A Little Dream
2021
as Wayne
FBI: Most Wanted
2020
as Travis Russell
9-1-1: Lone Star
2020
as Bruce Ackerman
Tell Me How I Die
2016
as Dr. Jerrems
Rush Hour
2016
as Principal
MacGyver
2016
as The Client / Daniel Holt
Blackhat
2015
as Rich Donahue
The Atticus Institute
2015
as Dr. Henry West
Minority Report
2015
as Charlie Peele
Supergirl
2015
as Dr. Rudy Jones / Parasite
Powers
2015
as Todd Secor
Drew Peterson: Untouchable
2014
as Glenn Levecke
I Origins
2014
as Darryl Mackenzie
American War Generals
2014
as Self - Narrator
Constantine
2014
as Jacob Shaw
Underdogs
2013
as Bill Burkett
Escape from Polygamy
2013
as Ervil
It's Dark Here
2013
as David Tennies
Jobs
2013
as Calligraphy Professor
The Blacklist
2013
as Bill
Static
2012
as Greg Wagner
Darnell Dawkins: Mouth Guitar Legend
2012
as Pastor Jenkins
FDR: American Badass!
2012
as Dr. Ellington
Another Earth
2011
as John Burroughs
Edwin Boyd: Citizen Gangster
2011
as Detective Rhys
A Warrior's Heart
2011
as Coach David Milligan
Portraits in Dramatic Time
2011
American Horror Story
2011
as Driver
Grimm
2011
as Dwight Eleazer
Human Target
2010
as Sam Fisher
Justified
2010
as Delroy Baker
Hawaii Five-0
2010
as Eric Porter
Hurt
2009
as Darryl Coltrane
Castle
2009
as Carl Matthews
Celebrity Ghost Stories
2009
as Self
The Burrowers
2008
as Will Parcher
The Mentalist
2008
as Richard Haibach
Moola
2007
as Steve
Moving McAllister
2007
as Bob
Viva Laughlin
2007
K-Ville
2007
Burn Notice
2007
as Garret Hartley
Mad Men
2007
as Randall Walsh
Ask the Dust
2006
as Bill
The Lather Effect
2006
as Jack
World Trade Center
2006
as Marine Sergeant Thomas
The Zodiac
2005
as Dale Coverling
Lords of Dogtown
2005
as Donnie
Threshold
2005
Criminal Minds
2005
as Ian Corbin
The Inside
2005
as Ronald Ewing
The Grudge
2004
as Matthew Williams
Suspect Zero
2004
as Bill Grieves
Lost
2004
as Ethan Rom
The Kiss
2003
as Peter
NCIS
2003
as Kyle Grayson
Minority Report
2002
as Hotel Clerk
The Pennsylvania Miners' Story
2002
as John 'Flathead' Phillippi
CSI: Miami
2002
as Pete Keller
In the Bedroom
2001
as Richard Strout
Swordfish
2001
as Gabriel's Crew
Vanilla Sky
2001
as Clubgoer (uncredited)
Crossing Jordan
2001
as Henry Bishop
Law & Order: Criminal Intent
2001
as John Silvestri
Mission: Impossible II
2000
as Wallis
CSI: Crime Scene Investigation
2000
as Douglas Sampson
Magnolia
1999
as WDKK Show Director's Assistant
Law & Order: Special Victims Unit
1999
as Luke Edmunds
Without Limits
1998
as Bob Peters
The Unknown Cyclist
1998
as By Stander
Touched by an Angel
1994
as Eddie
Born on the Fourth of July
1989
as Platoon - Vietnam