Alexandra Daddario has been in a ton of films and television, though you may have a hard time pinning down exactly where you've seen her if you aren't a young person. She was in the film 'Baywatch' in case you were one of the hundred people who went to see that in theaters. She's charming in it, even if the movie is a little silly.
Alexandra Daddario has actually already been a super hero, although it wasn't in any of the movies. She played the voice of Wasp in Marvel Avenger Academy, the videogame. As far back as 2013, Alexandra had said that she wanted to play Wonder Woman. That was before there was even huge buzz about the new movie. Heck, DC was still recovering from the 2011 TV show that never saw the airwaves.