13. Michael Fassbender
One of the best actors working today, Fassbender has been turning out impressive roles one after the other over the past five or six years. Fassbender is no stranger to big budget films or sci-fi films, as he turned in impressive performances in both X-Men: First Class and Prometheus. His roles in movies like Inglorious Basterds, Hunger and many other showcase his versatility as an actor. If cast in the sequel trilogy, Fassbender would be equally good as either the main villain, or as one of the leading Jedi Masters. If it is in one of the spin-offs, Fassbender could just as easily play a variety of roles in either the Han Solo or Boba Fett films or in one of the unannounced films.