William Mapother (1965 - )
- Mission: Impossible II (2000) [Wallis]: Killed along with Dominic Purcell and an unnamed mercenary in a car crash/explosion while chasing Tom Cruise.
- In the Bedroom (2001) [Richard Strout]: Shot in the back by Tom Wilkinson by the side of the road, as he tries to crawl away after Tom shoots him in the shoulder. (Thanks to Laurie)
- Swordfish (2001) [Gabriel's Crew]: Shot by a police sniper while standing in front of the bank next to his hostage (Marina Black). (Thanks to Laurie)
- Self Storage (2002) [Graham]: Suffocated after Rainn Wilson shackles William to the wall in a storage unit, then seals him in by building another wall in front of him. (Thanks to Laurie)
- The Grudge (2004) [Matthew Williams]: Killed (off-screen) by Takako Fuji's ghost in the bedroom; his shriveled/mummified body is shown afterwards (along with Clea DuVall's) in the attic. (Thanks to Alex)
- Law & Order: Special Victims Unit: Rotten (2003) [Luke Edmunds]: Commits suicide (off-screen) by hanging himself in his cell. (Thanks to Neil)
- Lost: Homecoming (2005) [Ethan Rom/Ethan Goodspeed]: Shot six times by Dominic Monaghan to avenge the kidnappings of Dominic and Emilie de Ravin.
- Justified: Loose Ends (2012) [Delroy Baker]: Shot in the stomach with a shotgun by Joelle Carter in order to prevent him from harming Abby Miller any further.
- American Horror Story: Dark Cousin (2012) [Misogynistic Driver]: Commits suicide by shooting himself in the head while Sarah Paulson watches him.
- Escape From Polygamy (2013 TV Movie) [Ervil]: Shot in the back by Sam Hennings as William is preparing to kill Haley Lu Richardson.
- The Mentalist: White as the Driven Snow (2014) [Richard Haibach]: Shot to death by Owain Yeoman to save Simon Baker and Amanda Righetti.
- Supergirl: Changing (2016) [Rudy Jones/Parasite]: Explodes when Melissa Benoist causes him to absorb plutonium and overload his power.
- Grimm: The Believer (2016) [Dwight Elezar]: Stabbed multiple times with hot pokers by multiple people, including Melinda Page Hamilton.
- The Blacklist: Ruin (2018) [Bill]: Burned alive when Megan Boone shoots a flare gun on him shortly after dousing him with fuel.
- Cousin of Tom Cruise
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