Though Kaley Cuoco may be most famous with long, warm, blond locks, she's rocked more shades and cuts than you might think. In fact, her hair transformation is as varied as Cuoco's stunning style transformation. And we're not just talking a trim and a few highlights every now and then, as "The Flight Attendant" actor isn't afraid to try the unexpected. "Just blink and it might be blue or something. I always do something stupid to it. It's hair! It grows back," she told Us Weekly.

While playing Penny on the hugely popular CBS sitcom "The Big Bang Theory" from 2007 until 2019, Cuoco explained she liked to alter her look to feel more like herself in between shooting. "It's very important for me to change my look after wrapping each season," she wrote in a since deleted Instagram post (via E! News). "I love playing Penny, but it's good for me to bring it back to Kaley," she added. And she's also rocked some equally head-turning looks both before and after landing the role of a lifetime.