This is Sam Galahad in the musical "Gunmeal Blues".
Galahad is a human but he seems like a dog or a wolf. More akin to a wolf. In fact, At the end of some songs, he cries like a wolf. It's Really cool.
I saw the 'Gunmeal Blues' in Korean casting because I'm korean. When I saw, Seok Jun Lee starred on Galahad.
It was a great....I really like it.