William Forsythe

Film Deaths

Cloak & Dagger (1984) [Morris]: Killed by Michael Murphy. (Thanks to Michael)

Once Upon a Time in America (1984) [Philip 'Cockeye' Stein]: Shot to death (off-screen) by police in an ambush. (Thanks to Michael)

The Lightship (Killers at Sea) (1986) [Gene]: Stabbed and throat slit by Badja Djola, who then throws William's body overboard. (Thanks to ND)

Extreme Prejudice (1987) [Sgt. Buck Atwater]: Shot to death in a shoot-out with Mexican rebels. (Thanks to Michael)

Weeds (1987) [Burt the Booster]: Beaten to death during a prison riot. (Thanks to Michael)

Dick Tracy (1990) [Flattop]: Shot to death in a shoot-out with Warren Beatty. (Thanks to Michael)

Out for Justice (1991) [Richie Madano]: Stabbed in the head with a corkscrew by Steven Seagal at the end of a fight; his body is later seen when Steven uses a mobster's gun to shoot William several times to make it look like a mob hit (so presumably Sal Richards can take the credit). (Thanks to Michael)

Stone Cold (1991) [Ice]: Killed in a car crash/explosion after a chase with Brian Bosworth he dies after talking to Brian (his body is later seen when Lance Henriksen and the other outlaw bikers set him on fire for a Viking funeral). (Thanks to Michael)

Relentless 3 (1993) [Walter Hilderman]: Killed by Leo Rossi. (Thanks to Michael)

The Immortals (1995) [Tim James]: Shot to death in a shoot-out. (Thanks to Michael)

Things to Do in Denver When You're Dead (1995) [Franchise] Murdered off-screen by Steve Buscemi. His body is discovered by the local police on the bed of his motel room.

Virtuosity (1995) [Wiliam Cochran]: Beaten to death by Stephen Spinella. (Thanks to Michael)

The Substitute (1996) [Hollan]: Shot in the back by Ernie Hudson, he dies sometime later (having killed Ernie's cohorts) talking to Tom Berenger.

Ambushed (1998) [Mike Organski]: Shot by David Keith; he mananges to shoot David in turn before dying. (Thanks to Tal)

Firestorm (1998) [Randall Alexander Shaye]: Burned to death when Howie Long thrusts his head up into the midst of a firestorm (after being shot then impaled in the chest with a thrown axe).

Luck of the Draw (2000) [Max Fenton]: Shot in the back by Patrick Kilpatrick after William tries to take the counterfeiting plates. (Thanks to ND)

City by the Sea (2002) [Spyder]: Shot to death in a shoot-out with James Franco, while Robert De Niro looks on. (Thanks to Michael)

The Devil's Rejects (2005) [Sheriff Wydell]: Neck snapped by Matthew McGrory just as William is about to kill Sheri Moon Zombie.
Halloween (2007) [Ronnie White]: Throat slit by Daeg Faerch, after Daeg duct-tapes him to his chair while he sleeps. (Thanks to Cody, Andrew, Derek, and Eric)

Dear Mr Gacy (2010) [John Wayne Gacy]: Executed by lethal injection (we only see him being led down a corridor to the awaiting table)

The Rig (2010) [Jim Fleming]: Mauled or slashed to death by a mutated Dan Benson after Dan grabs him through a window before dragging him outside.

Echoes of War (2015) [Randolph McCluskey]: Presumably dies of blood loss (off-screen) after being shot in the side by James Badge Dale.

Hidden in the Woods (2016) [Uncle Costello]: Fatally shot to death with a shotgun by Michael Biehn after William shoot Michael in the back.
The Midnight Man (2016) [Fairbanks]: Neck snapped after being choked with chains by Will Kemp.
The Hollow (2016) [Big John Dawson]: Shot in the head by James Callis.
Check Point (2017) [The Sheiriff]:

Masters Of Horror: We All Scream for Ice Cream (2007) [Buster]: Run over by an ice cream truck after Spencer Achtymichuk disengages the truck's emergency brake prior to the events of the episode; his death is shown in a flashback and he returns as a vengeful spirit in the present. He later dies again when Quinn Lord eats a voodoo ice cream bar shaped like William, causing him to dissolve. (William makes a brief appearance at the end of the episode, implying he might not be dead for good.)

Boardwalk Empire: Resolution (2012) [Manny Hovitz]: Shot in the head by Jack Huston.

The Mentalist: Blood Feud (2012) [Steve Rigsby]: Died of a stroke in front of his son (Owain Yeoman) after being severely wounded by Max Martini.

Daredevil: Seven Minutes in Heaven (2016) [Dutton]: Presumably suffocates (off-screen) when his lungs fill up with blood some time after being stabbed by Jon Bernthal, while Vincent D'Onofrio sits by his bedside; we last see him in a hospital bed being told by Vincent that he's likely to die this way.

Ex-Mr. Melody Munyon

No relation to John Forsythe (despite many rumors)