Darth Vader is the most obvious one, but Star Wars die-hards are probably familiar with Saw Gerrera, played by Forest Whitaker.
Saw first appeared in the animated Clone Wars series and is now making the jump to the big screen.
Gerrera has a minor presence in the book, but he ends up aligning with the Ersos at a critical time.
This December’s Rogue One: A Star Wars Story will introduce several new faces to the franchise, but fans have already met some of the characters in the movie.