Every once in a while, a role demands a little something extra from an actor — like shaving off all their hair. Most of the time, there's a talented star willing to rise to the challenge. In case you needed any inspiration to go for a close-crop or shorter this summer, we've rounded up 40 stars who grabbed the clippers to get into character. Yes, Christian Bale is supporting a very bad head of hair here. But for his role in American Hustle , the actor decided to shave his head so the makeup department could add a bad toupee every day of filming. Natalie Portman temporarily sacrificed her signature long brunette locks for a starring role in V for Vendetta.

Celebrities are no strangers to undergoing radical transformations for certain roles, including shaving their heads and losing most, if not all, of their hair. Whether they're playing an astronaut, a criminal, or a cancer patient, stars like Joseph Gordon-Levitt , Tom Cruise, and Angelina Jolie have all shaved their heads for a role. While most celebrities tend to let their hair grow back out after filming, some have continued to keep a short cut even after the project has wrapped. Read more : Sandra Bullock admitted she had a crush on 'Speed' costar Keanu Reeves, and the actor just confirmed it was mutual. Nixon played a cancer patient, and received rave reviews for her performance in

Celebrities are no strangers to changing up their looks, especially when it comes to their hair. They can dye it, chop it, add extensions to it, and more, but some A-listers have taken the plunge to buzz their hair off completely. Audiences saw her long hair in "Star Wars," where she had it pulled back and twisted into fancy rolls fit for her queenly character. Portman's real hair was shaved in one of the movie's scenes and she told MovieWeb in that they had to do it in just one take.