Reese Witherspoon
Though once known for cutesy roles like Elle Woods in "Legally Blonde," she quickly rose the ranks to more mature films like "Walk the Line" and "Wild" and HBO's "Big Little Lies" series. Though she once said she was “flabbergasted by how many legitimate actresses” take off their clothes, she ended up doing the same for her role as Cheryl Strayed in "Wild" (2014).