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
Based on the popular novel written by Steve Perry. Shadows of the Empire takes place between Episodes 5 and 6 of the original trilogy. If this story was adapted into the current canon, who would play the most prominent roles?