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