Tron Legacy Easter Egg - Faces Are Blast from Past

There are a couple of faces that harken back to the old Tron movie in Tron Legacy:

Cillian Murphy appears (but gets no credit) as Edward Dillinger Jr., the son of the villain Ed Dillinger, who is also the face of the program Sark in the first Tron.

Steven Lisberger plays a bartender in a club. He was director and writer for the original.