Okita Sōji
He is parodied in the anime "Gintama" as Saitō Shimaru, a narcoleptic with a fear of speaking. In the series, he holds the role of an internal investigator of the Shinsengumi, a post he was said to have held in real life, and is also regarded as its most deadly member by Okita Sougo, the "Gintama" proxy of Okita Sōji.