Tom cruise is one bad you-know-what. The actor and real-life motorcycle enthusiast is responsible for some of the coolest action sequences in film (remember this, this and this?), but what's even more incredible is that the A-lister performs most of these stunts himself -- from dangling off the edge of the world's tallest building to racing a motorcycle alongside real bulls and more! How does he do it? "I don't get scared," he's said. Now that is cool!