Los Angeles: Details of actor Forest Whitaker's character along with others in "Rogue One: A Star Wars Story" have been revealed. In the "Star Wars" standalone movie, Whitaker plays Gerrera, reports ew.com. The character first made an appearance in "Star Wars: The Clone Wars" animated series. He is a guerrilla soldier from the planet Onderon who became the self-appointed leader of a rebel unit fighting against Count Dooku's forces in the animated film. As for Whitaker's Gerrera, he is more battle-hardened with the years, and maybe a little shell-shocked. He is a man who has tried to do the right thing by occasionally doing questionable things. The story follows Jyn Erso, a Rebellion soldier and criminal, who is about to experience her biggest challenge when Mon Mothma (Genevieve O'Reilly) sets her out on a mission to steal the plans for the Death Star. With the aid of the Rebels, a master swordsman, and non-allied forces, Erso will be in for something bigger than she thinks. Based on a screenplay written by Chris Weitz, "Rogue One: A Star Wars Story" is slated to hit US theaters on December 16.