Vin Diesel has played tough guys from a very young age, from when he just started out his career as an actor. One of his most popular characters is Dominic Toretto from the Fast and Furious saga. However, he has also played an important part in other movies, such as The Chronicles of Riddick, XXX, and Saving Private Ryan. And while this man may appear to be way too tough to even know the meaning of tears, he has also proven that he can make fans fall in love with his voice alone. You might not know this, but he actually voiced Groot in the Marvel movie, Guardians of the Galaxy.