It's impossible to imagine anyone other than Ian McDiarmid playing the Emperor in Star Wars. His cackling voice and piercing looks made Darth Sidious one of the best villains in cinema history ...

Several actors, including Ian McDiarmid, Sam Witwer ... but he still needed a voice to match. Scarred and creepy, but intimidating and mysterious, the reveal and fall of Palpatine was vital ...

Ian McDiarmid almost didn't play Palpatine due ... Palpatine vs Mace Windu debate and coming in to reprise his role as a voice actor for animated projects. McDiarmid is irreplaceable as Palpatine ...

Ian McDiarmid, best known for playing Emperor Palpatine ... Friends); John Dimaggio, the voice of Bender on Futurama; Alex ...