Hattori Hanzō (服部半蔵?)

Arguably the most famous ninja in history, the tales of Hattori Hanzō are still told in Japanese History books. He sent Gonosuke to kill kanbei and retrieve the scroll, When Iga is attacked by Oda's army, he let Kanbei to bury the ancient scroll and choose not to kill him because he already makes a copy of the ancient scroll and passes it to Akechi Mitsuhide.