吉田松陽
A character from [i][[Gintama]][/i], modeled after "Yoshida Shouin":[https://en.wikipedia.org/wiki/Yoshida_Sh%C5%8Din].

The teacher at the dojo [[Sakata Gintoki]], [[Katsura Kotarou]], and [[Takasugi Shinsuke]] all attended when they were younger. Mentor and father figure to all three. 

[spoiler] He is decapitated during the Joi War by Gintoki himself, but turns out to be immortal and survives as [[Utsuro]]. The identity of "Yoshida Shouyou" is not his true self.[/spoiler]
yoshida shouyou