Chadwick Boseman auditioned for Drax in Guardians of the Galaxy before he became T’Challa/Black Panther in the MCU.
Tom Hiddleston auditioned for Thor before eventually being cast as Loki in the MCU.
Liam Hemsworth was originally considered for Peeta, not Gale, in The Hunger Games.
Tom Felton auditioned for Harry and Ron in Harry Potter before being cast as Draco.
Kristen Bell and Idina Menzel actually both auditioned for Rapunzel in Tangled before ultimately being cast as Anna and Elsa in Frozen a few years later.
Lindsay Lohan and Rachel McAdams originally auditioned for each other’s parts in Mean Girls.
The director of Napoleon Dynamite, Jared Hess, originally wanted Jon Heder to play the bully Randy. Heder ended up playing Napoleon.
Gabrielle Union originally auditioned for Monica before going on to play Shawnee in Love & Basketball.
Bill Nunn originally auditioned for Senor Love Daddy (who was eventually played by Samuel L. Jackson) before playing Radio Raheem in Do the Right Thing.
Cillian Murphy originally auditioned for Bruce Wayne/Batman in Batman Begins, before playing Jonathan Crane/Scarecrow in the trilogy.
Lily James originally read for Anastasia, one of the step-sisters, for the live-action Cinderella — before being cast as Cinderella herself.
Corbin Bleu (who went on to play Chad) originally auditioned for Ryan in High School Musical — while Lucas Grabeel (who went on to play Ryan) auditioned for Troy.
And both Monique Coleman and Ashley Tisdale auditioned for Gabriella before being cast as Taylor and Sharpay, respectively.
Wyatt Oleff, who ended up playing Stanley, and Jack Dylan Grazer, who ended up playing Eddie, both auditioned for Bill in It.
Diana Silvers was initially asked to audition for Ryan in Booksmart, but didn’t feel she had the right look for the character, so she read for Hope instead and ended up booking the role.
Jackson Rathbone was actually pretty close to landing the role of Edward in Twilight. He ended up playing Jasper instead.
In addition to Newt (who he ended up playing), Thomas Brodie-Sangster also auditioned for Gally in The Maze Runner.
Noah Centineo was almost cast as Josh in To All the Boys I’ve Loved Before. He ended up playing Peter.
Joseph Gordon-Levitt auditioned for both Cameron and Michael, ultimately playing Cameron, in 10 Things I Hate About You.
Wesley Snipes auditioned for Darryl Jenks in Coming to America back in the ’80s, but didn’t get the role. However, he’s set to appear in the upcoming sequel as General Izzi.
And finally, Shannen Doherty wanted to play Veronica in Heathers, but was asked to read for Heather Chandler instead. However, she preferred Heather Duke, and ended up getting that part.