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
A decade after the Jedi purge, a haunted Obi-Wan Kenobi is dragged out of hiding when a ruthless Inquisitor—Reva—arrives on Tatooine, hunting a mysterious Force signature. But behind her mission lies Darth Vader’s own obsession: to face his old Master and extinguish the last hope of who Anakin Skywalker once was.