The list of superheroes and villains that will be sharing the screen in Marvel’s upcoming film “Captain America: Civil War” continues to grow, the latest addition to the cast now has Daniel Brühl confirmed for the film, playing the villain Helmut Zemo.

Fans may know Brühl best from his recent role as Formula 1 champion Niki Lauda in “Rush,” he also played the role of sniper Fredrick Zoller in the popular Brad Pitt film “Inglourious Basterds” (shown above) back in 2009. For the last few weeks a rumor that Daniel Brühl would be joining the Marvel cinematic universe has been circulating, but with a recent interview with the Independent has confirmed, his inclusion in the project is now official.

So now we know that Baron Zemo will be part of the “Captain America: Civil War” story, but even a few casual Marvel fans might need a refresher in who that character actually is. A few of the more popular characters that have already been confirmed for the next Captain America installment are Chris Evans as Captain America, who will be battling against Robert Downey Jr. as Iron Man in the film. The two former allies will be on opposing sides after a bill is put forth in congress to have superheroes register their identity and powers. This causes a large divide in the superhero community, putting friend against friend, and heroes that don’t comply are labeled as criminals.

We also know that Chadwick Boseman will be joining the film as Black Panther, the new Spider-Man is also expected to be part of the film as well but no details have been shared at this time. Spider-Man is a crucial part of the Civil-War story in the comics, and although the casting isn’t confirmed for the film, his inclusion is highly-anticipated at this point. Last week Elizabeth Olsen confirmed that she will be reprising her role as Scarlet Witch for the Civil War storyline. Olsen herself is joining the Marvel universe with the premiere of “Avengers: Age of Ultron” later this week.

So who is Baron Zemo? The character was introduced almost 50 years ago in the comics, the original story of Zemo had him consistently fighting Captain America, and he was the son of a very prominent scientist that worked for HYDRA. Zemo was horribly disfigured when an accident involving a special solution called “Adhesive X” transformed him into his altered state. To hide his face, Zemo wore a distinctive purple mask, and created a version of the Masters of Evil community later on his lifetime.

Speaking on the film Brühl said, “For the first few days I’ll walk around like a little boy.” The film just began shooting this month, and Marvel has set a release date for MAy 6, 2016 for theaters across the United States.