Following word on Wednesday that Darth Vader will be appearing in this December’s Star Wars spinoff, EW is sharing additional details about Darth Vader’s role in Rogue One.

Rogue One is set before the events of A New Hope, meaning that Darth Vader is alive and well when the story kicks off. So how much of Vader — who will be voiced by original voice actor James Earl Jones (now 85 years young) — can we expect to see? Here’s what Entertainment Weekly says:

The answer – just a little bit. (That’s why there isn’t a new image of him, unfortunately.) Kennedy says Rogue One has to make careful use of Vader. “He will be in the movie sparingly,” she says. “But at a key, strategic moment, he’s going to loom large.”

EW also learned a little about Vader’s reputation in the galaxy at this point in the chronology, roughly 19 years after the events of Revenge of the Sith, when Anakin Skywalker lost most of his limbs and was horrifically burned in a battle with Obi-Wan, necessitating the life-sustaining armor he wears forever after. As Rogue One unfolds, Vader is still a background player in galactic politics.

Vader is the muscle. The fixer. And also… the breaker, when he needs to be.

Interestingly, the rebels who lead Rogue One won’t be very aware of Vader. “The Rebels are barely familiar with Vader,” EW writes. “Even within the Empire, he is more legend than everyday presence. ‘Within the Rebellion, it’s not commonly spoken about,’ says director Gareth Edwards. ‘Within the Empire, there is the culture of knowing of the existence of Darth Vader. There’s definitely an underlying feeling that there is a power – a dark power – available to the Empire and that if you overstep your mark, you will suffer the consequences.’”

Darth Vader’s presence in Rogue One should help bring in additional fans who are skeptical about seeing a Star Wars story outside of the three trilogies that’ve defined the cinematic universe since the outset.