Faux HALF-LIFE Movie Poster Has Some Great Casting Ideas

Any poster for a faux Half-Life film is a great idea but this one in particular sticks out. Not only did the artist (who I can't find) create a neat, minimalistic poster, but they also cast known actors as characters. If you look at the bottom of the poster you will see who the artist cast and can speculate as to who they will play.

Bryan Cranston would play Gordan Freeman, Christopher Walken would play The G-Man, Morgan Freeman to play Eli Vance, and Rosario Dawson as Alyx Vance. These are all sound decisions in my opinion, AND the artist cast Christopher Nolan as the director. Yo, I would see this movie.

Are there any other actors you would cast in the film?