|Billy Connolly (1942 - )
Mr. Pamela Stephenson
|Muppet Treasure Island (1996) [Billy Bones]: Dies of a heart attack from fright, after Blind Pew presents him with the Black Spot; he dies shortly after telling Kevin Bishop, Gonzo, and Rizzo about his treasure (and warning them not to run with scissors). (Thanks to Casey, Jude, and Neil)
Mrs. Brown (Her Majesty Mrs. Brown) (1997) [John Brown]: Dies of pneumonia, with Judi Dench at his bedside.
White Oleander (2002) [Barry Kolker]: Poisoned (off-screen) by Michelle Pfeiffer, a few years before the story begins; he only appears in flashback scenes.
The Last Samurai (2003) [Zebulon Gant]: Stabbed by a Samurai, after being knocked from his horse with a spear. (Thanks to David31)
Lemony Snicket's A Series of Unfortunate Events (2004) [Uncle Monty]: Poisoned (off-screen) with snake venom by Jim Carrey; his body is shown sitting in a chair afterwards (we only see his hand and the back of his head) while Cedric the Entertainer investigates the crime scene.
Fido (2006) [Fido]: Dies of a heart attack (off-screen), some time before his first appearance; he appears as a zombie throughout the movie. (Thanks to Tommy)
The X-Files: I Want to Believe (2008) [Father Joseph Crissman]: Dies (off-screen), either due to his cancer or because of his psychic link to Christopher Woodcock at the time of Christopher's decapitation (depending on which interpretation you believe). His death is revealed when Gillian Anderson informs David Duchovny. (Thanks to Augustin and Tommy)