Ian McDiarmid (born 11 August 1944) is a Scottish actor and director best known for portraying Emperor Palpatine in the Star Wars film series. He has received an Olivier Award for Best Actor and a Tony Award for Best Featured Actor in a Play for his performances. Wikipedia
Christopher Nolan's Star Wars: Episode IX – The Rise of Skywalker
The Rise of Skywalker follows Rey, Finn, and Poe Dameron as they lead the Resistance's final stand against Supreme Leader Kylo Ren and the First Order, who are aided by the return of the Galactic Emperor, Palpatine.