The legendary samurai epic by by Kazuo Koike and Goseki Kojima has a blood spilling cast:
Ogami IttoThe former executioner of the Shogun. Was framed by Retsudo of the Yagyu Clan and sentenced to die. Instead, Itto takes his son Daigoro with him on a quest to avenge themselves against the Yagyu.
Abe no Kaii