13 Reasons Whyactress Katherine Langford has been cast inAvengers 4. Her role is being kept a mystery for the time being. Australian-born Langford is best-known for starring as Hannah Baker in Netflix’s13 Reasons Why, which made its debut in 2017. The actress received a Golden Globe nomination for Best Actress in a Television Series Drama for her performance on the hit series. Langford auditioned for the role of Hannah over Skype and only had a few days to get a work visa since she had never worked in the United States before.

While it has been announced thatKatherine Langfordwill have a part inAvengers 4, it isn’t clear who the 22-year old actress will be portraying. According to sources, she has already filmed all of her scenes, which more than likely took place during the recent reshoots, and suggests that she has a smaller role. Reshoots for the highly anticipated film were completed earlier this month, and the Russo Brothers are deep into the post-production process at this time.

The newAvengers 4casting addsanother mystery for Marvel Cinematic Universefans to try and solve. All details about the movie, along with the upcomingCaptain MarvelandSpider-Man: Far From Homeare being kept under wraps, which is the usual deal for Marvel Studios, butAvengers 4seems to be even more of a mystery thanInfinity Warand the other movies combined. It’s pretty impressive that they were able to keep Katherine Langford’s casting a secret for so long, especially in this day and age where set photos leak nearly every day.

It’s believed that all of the characters fromInfinity Warwill return inAvengers 4, though it isn’t clear how that will be done, or if it will be through flashbacks. We do know thatT’Challa and Peter Parkerhave to come back since they have sequels on the way. The Guardians were supposed to have a sequel, but nobody is even sure if that’s happening anymore. Plus, the movie will bring inCaptain Marvel, Scott Lang, and Clint Barton, who were not around during the events ofInfinity Warto help take down Thanos.

Marvel Studios bossKevin Feige just revealed that the trailer for Avengers 4 will officially come out by the end of the year, which means that we’re only a few months away from seeing the first sneak peek at the sequel. This one is for all of the marbles, and it doesn’t seem like everybody will be making it out alive this time around, especially considering Elizabeth Olsen stated the movie will be darker thanInfinity War. In addition, it’s believed that the film will be Chris Evans' last time as Captain America and Robert Downey Jr.’s last time as Iron Man. The Katherine LangfordAvengers 4casting information was first announced byThe Wrap.