Kazuki's grandfather, who heavily influenced his outlook on humanity. Before World War II, he was deployed to Switzerland, where, in St. Moritz, he witnessed "something that transcended all creation" and swore his loyalty to it, believing that he should make his teachings live forever, even with his master gone from Earth.

Spoiler

He's one of the vampires created by Kars, pretending to be an old man using elaborate makeup.

Spoiler

It's strongly implied that he was killed by the Speedwagon Foundation, possibly even by Joseph himself.