Philip Seymour Hoffman (1967 - 2014)
- The Getaway (1994) [Frank Hansen]: Shot in the side by Michael Madsen while riding in a car with him, then pushed out of the moving car. (Thanks to Tal)
- The Fifteen Minute Hamlet (1995) [Bernardo/Horatio/Laertes]: As "Laertes," he is presumably slashed with a poisoned sword in a swordfight with Austin Pendleton. (I haven't seen this short film, but it's a condensed parody of the Shakespeare play.)
- The Talented Mr. Ripley (1999) [Freddie Miles]: Bludgeoned to death with a marble bust by Matt Damon in Matt's hotel room (after Philip discovers Matt impersonating Jude Law); Matt then carries his body out to the car and drives it into the sea.
- Red Dragon (2002) [Freddy Lounds]: Burned to death when Ralph Fiennes sets him on fire after a long period of torture; we see his flaming body rolling down the street in a wheelchair afterwards.
- Cold Mountain (2003) [Reverend Veasey]: Shot to death during a battle between the home guard and a group of Union soldiers, while Philip is shackled to Jude Law on the chain gang.
- Mission: Impossible III (2006) [Owen Davian]: Run over by a truck when Tom Cruise places him in its path at the end of a struggle. (Thanks to Eric, Matthew, Patrick and Dave)
- Before the Devil Knows Your Dead (2007) [Andy Hanson]: Smothered with a pillow by his father (Albert Finney) at the end of a struggle in his hospital bed.
- Synecdoche, New York (2008) [Caden Cotard]: Possibly dies (off-screen) from old age. The movie ends with his sentence getting cut off by Dianne Wiest saying "die" in a voice over.
- Mary and Max (2009; animated) [Max Jerry Horowitz]: Dies of unspecified causes (possibly a heart attack due to his morbid obesity). His body is later seen when Mary (voiced by Toni Collette) enters his apartment and finds him dead on his couch.
- Empire Falls (2005 mini-series) [C.B. Whiting/Charley Mayne]: Commits suicide by shooting himself in the head by his gazebo, several years in the past; he appears as a ghost to Ed Harris throughout the series. (Thanks to Stephen)