Ethan Miller, Getty Images
Where you've seen her: You either laugh, cheer her on or both while watching her as Mrs. Smith on "Mr.and Mrs. Smith"
Why we love her: As much as she loves kids, we should love her for that alone. She's the right-hand woman of actor Brad Pitt, but she is a business woman and philanthropist all her own. Outside of acting, her charity work includes UNICEF, ONE Campaign and UNHCR.