2. Kaley Cuoco
If you are a fan of The Big Bang Theory, which most of us are, next door neighbor Penny is everyone's second favorite character (taking that crown away from Sheldon Cooper would be harsher than sitting in his spot). Her flirty behavior with on and off boyfriend Leonard Hofstadter and of course her great looks and body will win her a lot of followers, but Cuoco isn't known for any other major roles and isn't billed to either, meaning your "crush" on Kaley is in fact a crush on Penny from the Big Bang Theory. Kaley did have a secret two year relationship with co-star Johnny Galecki, who plays Leonard, which was revealed in 2011 after they split up. Cuoco is currently engaged to American Tennis player Ryan Sweeting, despite having only dated for two months prior to popping the question, but he is pretty good with his back hand, so give up on this one, too.