HollywoodReporter says that Warner Bros. has two actors in mind to play Tetsuo in Akira. Previously there had been names mentioned like James McAvoy, Andrew Garfield, Robert Pattinson and Joseph Gordon-Levitt. Yet, two new actors are testing for the role they are Ezra Miller and Alden Eherenreich. Both are relatively unknown but are gathering quite an amount of cinema geek-cred. Miller is currently getting rave reviews for his performance in the thriller We Need To Talk About Kevin. Alden is best known for working with Francis Ford Coppola (Godfather) in films like Tetro and Twixt. He was also in the running to play the new Peter Park in Marc Webb's The Amazing Spider-Man.
I think Ezra Miller might be the best of the two choices since his brooding Kevin is very similar to the latter stages of Tetsuo's descent into power-driven madness. Other names that have been circling the project include Garrett Hedlund, Gary Oldman, Helena Bonham Carter and Keira Knightley.