Eikichirō Saidō

is an anime-only Shinigami.

Character Outline
He was sent to find Rukia Kuchiki in Karakura Town. Two years Rukia's senior, he seems to be a low or mid-level Shinigami (supported by the fact he is never seen activating his Zanpakutō), and Rukia states that she has never seen him before. He was in service with the Onmitsukidō, and finds himself pressed into service assisting Rukia and Ichigo against the Hollow, Grand Fisher. After being wounded by Grand Fisher, he fell asleep.