Kishitani, Shingen

岸谷森厳

A man with an eccentric personality who is Shinra's father. His behavior is so odd that he wears a gas mask, stating, "Tokyo air is very filthy," which is the reason for wearing it. He also has a habit of spinning a pen in his right hand.
While his personality ranges from childish, serving as comic relief, to somewhat intimidating (especially around Izaya and Namie), he is the one who offered Celty a place to stay in exchange for performing surgery on her, to which she agreed. He is, in fact, the one who made Shinra participate in multiple dissections, which he believes are the reason why Shinra is so twisted now.

Spoiler

He claims his company, Nebula executives, are interested in Celty and that is why he returned to Japan from America.