The Japanese case includes Jun Fukuyama as Koro-sensei, Tomokazu sugita as Tadaomi Karasuma and Shizuka Itou as Irina Jelavic.
Animated at studio Lerche with Seiji Kishi directing it, Makoto Uezeu is handling the scripts while Kazuaki Morita will be tackling the character designs.
Assassination Classroom - Official Clip - Tentacles