Keisuke Sannan from Hakuōki: Shinsengumi Kitan
Keisuke Yamanami from PeaceMaker Kurogane
Both are actually based on the same historical person and it seems like, so far, that every interpretation I've seen of this shinsengumi member is sporting glasses.
Masamune Date - Sengoku Basara
Team Aqua Grunt (male) - Pokémon Ruby/Sapphire Version
*~Next con I'm attending~*
FIN Oulun animeseminaari (8-9 August 2014)
FRI Ryūnosuke Ibuki - Hakuōki: Shinsengumi Kitan