Kenpachi Zaraki (更木 剣八, Zaraki Kenpachi?) is the most recent captain of the 11th Division. Unlike all of his predecessors, he has given himself the title of "Kenpachi," a title given to the man in each generation who enjoys fighting more than anyone else and has the greatest blood-lust; it roughly translates as "no matter how many times you cut him, he will never fall." He is also the only captain who cannot use Bankai because of his inability to sense reiatsu has made it hard for him to learn the name of his sword. Set on his inability to be cut down, he has made several changes to aid his enemy in battle and thus prolong good fights. He wears bells in his hair to announce his presence and movements, but they can only be heard if you have enough "spiritual energy" to sense them. He utilizes an eye-patch that eats at his reiatsu, lowering his strength and power by large numbers, since he cannot sense or control reiatsu. With the patch gone his full strength emerges, and the vast scale of his reiatsu makes his sword sharper than other Zanpakuto.
Kenpachi Zaraki is voiced by Fumihiko Tachiki in the Japanese version and by David Lodge in the English dub in 2007-2012 with Patrick Seitz voicing Kenpachi starting at episode 244.
Read more about this topic: List Of Soul Reapers In Bleach, Soul Reaper Characters, Eleventh Division