Spoiler warning in effect if you don't want to know the details.
Rogue One tells the story of resistance fighters who have united to steal plans to the dreaded Death Star.
Ew.com revealed the following:
Saw Gerrera (Forest Whitaker)
...this shadowy freedom-fighter is Saw Gerrera, a figure with a surprisingly deep background in galactic history. The warrior was actually first seen in season 5 of The Clone Wars animated series, when he was a young man on the planet Onderon, unleashing guerilla combat on the droid army of Separatists who took over his world. Along with his sister, Steela, he fought alongside Darth Vader — back when the Sith lord was just an impetuous young Jedi named Anakin Skywalker. In the episode A War on Two Fronts, which aired in October 2012, Saw and Steela were part of an insurgent group being unofficially trained by Anakin, Obi-Wan Kenobi, and the padawan Ahsoka Tano. ...Saw pays a steep cost for his resistance, and remains mistrustful of any authority except his own for the rest of his days. There never will be a peacetime for him. Whitaker’s Saw Gerrera is bulkier, more battle-hardened with the years, and maybe a little shellshocked. He has continued to fight; and, as he suggested in the trailer, he has become something — and it’s not quite a hero. Rather, he’s a man who has tried to do the right thing by occasionally doing questionable things.
Director Orson Krennic (Ben Mendelsohn)
On the opposing side, this villain is an ambitious Imperial apparatchik who intends to use his squad of Deathtroopers to pulverize the Rebel uprising and ascend into the Emperor’s graces – while hopefully avoiding the wrath of his enforcer, Darth Vader. “The bad guy is a lot more terrifying when he’s really smart, and really effective,” says Knoll. “There is a lot of palace intrigue going on in the Empire, with people conspiring to move up the ranks and sabotaging each other. There’s not a lot of loyalty there.”
Galen Erso (Mads Mikkelsen)
Jyn’s estranged father is like the galactic version of nuclear pioneer J. Robert Oppenheimer, with doomsday knowledge that is sought by both the Empire and the Rebellion. “He’s one of those people that has insight into you know specific aspects of just how the universe works,” says Hart. Where has Galen been, if Jyn has been on her own for years? “The circumstances of how the family got to the state that it’s in is something that we probably don’t want to share right now,” Hart says. (Lucasfilm isn't revealing his image yet, so this is file picture. Don't worry -- the button-down isn't retro galactic fashion.)
K-2SO (Alan Tudyk)
This towering, powerful security droid is described by Edwards as “the antithesis of C-3PO.” In other words, he’s tough, confident, not especially interested in "human/cyborg relations," and the complete opposite of a neurotic fussbudget. “Kaytoo is a little bit like Chewbacca's personality in a droid’s body,” Edwards says. “He doesn’t give a s--- about what you think. He doesn't fully check himself before he says things and does things. He just speaks the truth.” Like Jyn, he’s also seeking a bit of redemption for past wrongs. Droids, too, can have regret.
Bodhi Rook (Riz Ahmed)
Bodhi is this Rebel squad’s lead pilot. He tends to be hot-headed, but any abrasiveness is overshadowed by his skills in the air — and the void of space. “He flies a lot of cargo, one of his key jobs,” Kennedy says. “And he tends to be a little tense, a little volatile, but everybody in the group really relies on his technical skills.”
Baze Malbus (Jiang Wen)
Heavily armored, Baze prefers a blaster to hokey religions and ancient weapons, but he is devoted to protecting his friend Chirrut at all costs. “He understands Chirrut’s spiritual centeredness, but he doesn’t necessarily support it,” Kennedy says. Baze goes along with this Force business because “it’s what his friend deeply believes,” she adds. Think of them as a little like the galactic version of Don Quixote and Sancho Panza.
Chirrut Imwe (Donnie Yen)
Captain Cassian Andor (Diego Luna)
Jyn Erso (Felicity Jones)