Oda Yamashiro

Oda Yamashiro was the brother of Masako Yamashiro in ancient Japan, living around the 17th century. He was a popular samurai under the reign of an evil shogun. The shogun was jealous of Oda's popularity among his crew and had Oda killed. Oda's remaining armor and katana were sent back to his father and sister.

Masako and her father later avenged Oda's death with the aid of the Legends of Tomorrow. It was revealed that Oda is an ancestor of the hero Katana. (episode: Shogun)