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
Wolfenstein 3D: Spear of Destiny (1992 adaptation)
If this actually got adapted, I feel like this would have worked better as a separate installment from Wolfenstein 3D. So, follow B.J. Blazkowicz as he encounters the Spear of Destiny before the events of Wolfenstein 3D.