Post an anime character who is a stoic person.

Homura Akemi from Puella Magi.

Hagi from 'Blood+'

Julius from Alice in the Country Of Hearts is very stoic and he rarely smiles . He only smiles on very rare occasions and he barely finds anything funny o amusing .

Mori?

The Mushibugyo (Insect Magistrate) from the anime por the same name. She's had her moments though, especially when Jinbei is concerned.