
Quick answer — Osamu Sekita worked on Cross Game (Director), Initial D Final Stage (Episode Director), Mobile Suit Zeta Gundam (Episode Director) and 6 more anime.
Osamu Sekita worked on Cross Game (Director), Initial D Final Stage (Episode Director), Mobile Suit Zeta Gundam (Episode Director), Space Runaway Ideon (Storyboard), Saber Marionette J (Episode Director), Beyblade G Revolution (Animation Director), Mobile Suit Gundam ZZ (Storyboard), Beyblade V-Force (Script) and 1 more.