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
The Master (known at times by various other aliases), was a renegade Time Lord, he was a friend of The Doctor before becoming a long standing opponent.
