One of the Six God Generals in Tales of the Abyss who appears occasionally to either help or hinder the main party. Asch is abrasive and rude, and especially dislikes Luke fon Fabre. He does have a good relationship with Natalia, but he doesn't really care for anyone else.
Asch is the real Luke fon Fabre, while the other Luke is a replica of him. Thus they share the same seiyuu, Suzuki Chihiro.