San

is an antagonist from Naruto Shippūden 3: Inheritors of the Will of Fire. He is a shinobi and one of Hiruko's three followers, along with Ichi and Ni. He almost perfectly resembles a mirror image of Ichi, except that he has three marks on his forehead.

Trivia

 * means "three"; likewise, his partner's names mean "one" and "two".