Actor/Actress with the Most Impeccable "Nerd" Credentials

Good call on Hugo Weaving. Probably the best shot to unseat Urban in the rankings. But an IMDB search also reveals Urban has some Riddick and Hercules chops. He checks all the boxes except Star Wars.

Sigourney is probably the strongest female candidate. I can't think of anyone else really that close right now.

We also can't forget the old standards like Ahnold. He had a bunch of classic one-offs (Predator, Total Recall) , but he was also Conan, Mr. Freeze and the Terminator.