Marvel Studios released the new trailer for the upcoming Black Widow solo movie, which revealed plenty of new details about the film's story and teased the spy-tastic action scenes it has in store for fans. But most importantly, the new look focused greatly on the threat of the film's villain, Taskmaster. Previous Black Widow promos only hinted at the villain and his abilities, but this new trailer didn't hold back as it showed him in action, revealed his connection to Natasha and Co. and showcased his abilities to mimic the fighting styles of anyone he studies.

And yet, despite all of that, fans still have no idea who is hiding under the mask. In the pages of Marvel Comics comics, Taskmaster is the alter ego of Tony Masters, an assassin-for-hire. But in the Marvel Cinematic Universe, someone else might be behind the skull.

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The new Black Widow trailer makes plenty of surprising revelations about Taskmaster. While he is simply a hired assassin in the comics, things appear to be vastly different in the film. In fact, it's revealed that he is the one at the head of the new Red Room, the Soviet program responsible for creating the lethal Black Widow spies. What's more, Taskmaster appears to have some sort of grudge against Natasha Romanoff, whom he personally blindsides on a bridge late at night.

But despite all of the revelations about the villain, the trailer (and all those before) only show him with his mask on. Previously, Marvel has always been eager to announce which actor is playing the villain in its next big film, with some prominent examples being Josh Brolin's Thanos, Cate Blanchett's Hela and Jake Gyllenhaal's Mysterio. However, the studio didn't announce anything for Black Widow -- which is surprising, to say the least. With the identity of the person under the Taskmaster mask kept secret, this creates an air of mystery around the new character.

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It's unlike Marvel to keep something so big as the secret identity of a character from its marketing, and that is in and of itself telling. If the studio is keeping the identity of the actor bringing Taskmaster to life a secret, then it's likely that it's important to the film's story. The implication with that idea, though, is that Taskmaster could be someone fans already know.

There are a few theories floating out there that include Clint Barton, Melina and even a clone of Natasha herself. Of course, it could always be someone new who fans will meet in the film. At this point in time, it really feels like Taskmaster could be anyone.

Since Black Widow takes place before the events of Avengers: Infinity War, there isn't room for many surprises in Black Widow -- and that is perhaps why it's such a good idea on Marvel's part to play coy with Taskmaster.

Directed by Cate Shortland, Black Widow stars Scarlett Johansson as Natasha Romanoff/Black Widow, Florence Pugh as Yelena Belova, David Harbour as Alexei Shostakov/Red Guardian, O-T Fagbenle as Rick Mason and Rachel Weisz as Melina. The film opens in theaters May 1.

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