Quick answer — Tensai Okamura worked on Darker than Black (Director), Wolf's Rain OVA (Director), Legend of the Galactic Heroes: My Conquest Is the Sea of Stars (Key Animation) and 12 more anime.
Tensai Okamura worked on Darker than Black (Director), Wolf's Rain OVA (Director), Legend of the Galactic Heroes: My Conquest Is the Sea of Stars (Key Animation), My Hero Academia: You’re Next (Director), Wolf's Rain (Director), Blue Exorcist (Director), The Seven Deadly Sins (Director), Darker than Black: Beneath Cherry Blossoms in Full Bloom (Director) and 7 more.