
Quick answer — Katsuzou Hirata worked on Angel Beats! (Character Design), Angel Beats!: Another Epilogue (Animation Director), Ben-To (Character Design) and 5 more anime.
Katsuzou Hirata worked on Angel Beats! (Character Design), Angel Beats!: Another Epilogue (Animation Director), Ben-To (Character Design), Armitage III (Key Animation), Renkin San-kyuu Magical? Pokaan (Character Design), The Severing Crime Edge (Character Design), Anyway, I'm Falling in Love with You. (Sub Character Design), Luck & Logic (Chief Animation Director).