Shanks is one of the most important pirates in One Piece and fans know him to be a very powerful individual. Serving the role of one of the Four Emperors of the Sea, fans know Shanks to be a monster in terms of combat. While much about Shanks's past remains unknown, what fans know is that he was once a member of the Roger Pirates and was Roger's very own apprentice, just like Buggy. However, only one of these two individuals went on to reach a very high level of power, and that is Shanks.