Alicia Vikander is known best for her roles in films like "Euphoria," "The Light Between Oceans," "The Danish Girl," and, as of last month, "Tomb Raider." This stark transition from dramatic lead to action hero was only really only eclipsed, in our eyes, by the physical transformation she underwent to play the film's heroine, Lara Croft. For the film, she worked hard to become incredibly toned, defined and muscular. Thanks to an intense fitness regimen developed by an expert trainer, her hard work paid off.