Actor profile

William Mapother

17th April 1965 Louisville, Kentucky, USA Acting

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.

45 Movies 34 TV Shows 79 Credits

Filmography

Movies & TV Shows

The Leader 5th June 2026 as Reverend Applewhite

Outlaw Posse poster

Outlaw Posse 1st March 2024 as Angel

Black Girl Missing poster

Black Girl Missing 4th March 2023 as Russell

On Sacred Ground poster

On Sacred Ground 13th January 2023 as Daniel McKinney

Son of Monarchs poster

Son of Monarchs 15th October 2021 as Bob

Tell Me How I Die poster

Tell Me How I Die 16th September 2016 as Dr. Jerrems

Blackhat poster

Blackhat 13th January 2015 as Rich Donahue

The Atticus Institute poster

The Atticus Institute 5th January 2015 as Dr. Henry West

American War Generals poster

American War Generals 14th September 2014 as Self - Narrator

I Origins poster

I Origins 18th July 2014 as Darryl Mackenzie

Drew Peterson: Untouchable poster

Drew Peterson: Untouchable 29th January 2014 as Glenn Levecke

Escape from Polygamy poster

Escape from Polygamy 24th August 2013 as Ervil

Underdogs poster

Underdogs 16th August 2013 as Bill Burkett

Jobs poster

Jobs 15th August 2013 as Calligraphy Professor

It's Dark Here poster

It's Dark Here 1st January 2013 as David Tennies

Static poster

Static 31st October 2012 as Greg Wagner

FDR: American Badass! poster

FDR: American Badass! 24th September 2012 as Dr. Ellington

Darnell Dawkins: Mouth Guitar Legend poster

Darnell Dawkins: Mouth Guitar Legend 10th March 2012 as Pastor Jenkins

A Warrior's Heart poster

A Warrior's Heart 2nd December 2011 as Coach David Milligan

Edwin Boyd: Citizen Gangster poster

Edwin Boyd: Citizen Gangster 10th September 2011 as Detective Rhys

Another Earth poster

Another Earth 22nd July 2011 as John Burroughs

Portraits in Dramatic Time poster

Portraits in Dramatic Time 5th July 2011

Hurt poster

Hurt 10th November 2009 as Darryl Coltrane

The Burrowers poster

The Burrowers 9th September 2008 as Will Parcher

Moving McAllister poster

Moving McAllister 13th September 2007 as Bob

Moola poster

Moola 20th April 2007 as Steve

World Trade Center poster

World Trade Center 9th August 2006 as Marine Sergeant Thomas

The Lather Effect poster

The Lather Effect 26th June 2006 as Jack

Ask the Dust poster

Ask the Dust 2nd February 2006 as Bill

The Zodiac poster

The Zodiac 31st July 2005 as Dale Coverling

Lords of Dogtown poster

Lords of Dogtown 3rd June 2005 as Donnie

The Grudge poster

The Grudge 22nd October 2004 as Matthew Williams

Suspect Zero poster

Suspect Zero 27th August 2004 as Bill Grieves

The Kiss poster

The Kiss 14th September 2003 as Peter

Minority Report poster

Minority Report 20th June 2002 as Hotel Clerk

The Pennsylvania Miners' Story poster

The Pennsylvania Miners' Story 11th April 2002 as John 'Flathead' Phillippi

Vanilla Sky poster

Vanilla Sky 14th December 2001 as Clubgoer (uncredited)

In the Bedroom poster

In the Bedroom 23rd November 2001 as Richard Strout

Swordfish poster

Swordfish 8th June 2001 as Gabriel's Crew

Mission: Impossible II poster

Mission: Impossible II 24th May 2000 as Wallis

Magnolia poster

Magnolia 17th December 1999 as WDKK Show Director's Assistant

The Unknown Cyclist poster

The Unknown Cyclist 10th October 1998 as By Stander

Without Limits poster

Without Limits 11th September 1998 as Bob Peters

Born on the Fourth of July poster

Born on the Fourth of July 20th December 1989 as Platoon - Vietnam

The Possession at Gladstone Manor as Henry Gladstone

Suits LA poster

Suits LA 23rd February 2025 as Greg Fisher

A Little Dream poster

A Little Dream 1st February 2021 as Wayne

9-1-1: Lone Star poster

9-1-1: Lone Star 19th January 2020 as Bruce Ackerman

FBI: Most Wanted poster

FBI: Most Wanted 7th January 2020 as Travis Russell

MacGyver poster

MacGyver 23rd September 2016 as The Client / Daniel Holt

Rush Hour poster

Rush Hour 31st March 2016 as Principal

Supergirl poster

Supergirl 26th October 2015 as Dr. Rudy Jones / Parasite

Minority Report poster

Minority Report 21st September 2015 as Charlie Peele

Powers poster

Powers 10th March 2015 as Todd Secor

Constantine poster

Constantine 24th October 2014 as Jacob Shaw

The Blacklist poster

The Blacklist 23rd September 2013 as Bill

Grimm poster

Grimm 28th October 2011 as Dwight Eleazer

American Horror Story poster

American Horror Story 5th October 2011 as Driver

Hawaii Five-0 poster

Hawaii Five-0 20th September 2010 as Eric Porter

Justified poster

Justified 16th March 2010 as Delroy Baker

Human Target poster

Human Target 15th January 2010 as Sam Fisher

Celebrity Ghost Stories poster

Celebrity Ghost Stories 3rd October 2009 as Self

Castle poster

Castle 9th March 2009 as Carl Matthews

The Mentalist poster

The Mentalist 23rd September 2008 as Richard Haibach

Viva Laughlin poster

Viva Laughlin 18th October 2007

K-Ville poster

K-Ville 17th September 2007

Mad Men poster

Mad Men 19th July 2007 as Randall Walsh

Burn Notice poster

Burn Notice 28th June 2007 as Garret Hartley

Criminal Minds poster

Criminal Minds 22nd September 2005 as Ian Corbin

Threshold poster

Threshold 16th September 2005

The Inside poster

The Inside 8th June 2005 as Ronald Ewing

Lost poster

Lost 22nd September 2004 as Ethan Rom

NCIS poster

NCIS 23rd September 2003 as Kyle Grayson

CSI: Miami poster

CSI: Miami 23rd September 2002 as Pete Keller

Law & Order: Criminal Intent poster

Law & Order: Criminal Intent 30th September 2001 as John Silvestri

Crossing Jordan poster

Crossing Jordan 24th September 2001 as Henry Bishop

CSI: Crime Scene Investigation poster

CSI: Crime Scene Investigation 6th October 2000 as Douglas Sampson

Law & Order: Special Victims Unit poster

Law & Order: Special Victims Unit 20th September 1999 as Luke Edmunds

Touched by an Angel poster

Touched by an Angel 21st September 1994 as Eddie