Vatn is a long-haired man wearing a black coat, a brown shirt, a pair of leather boots, and a white handkerchief hanging within his neck.
He is often known as the Ghost Killer. In the Extra Ops in which he is featured, Vatn is hired by a town to stop a supernatural party, and completes his task.
Vatn later appears in Another Story, in "Ωmegalpha". Like in "Halloween Train", Vatn was hired by a village to investigate ghosts that were connected to Ptolemaios. Vatn goes over his plan with their new partner, the Red Goblin. He launches his attack on the Ptolemaic base with his automated mortars and turrets, causing heavy casualties.
- His appearance and design is based on Van Helsing.
- If Vatn is defeated, he will appear to pull out a bomb which will result in his self-destruction.
- He is also called 'Vaphaton' in the game's files.