'Kaijin Kaihatsu-bu no Kuroitsu-san' Unveils Additional Cast, First Promo
Camula: Ayana Taketatsu (Tantei wa Mou, Shindeiru.)
Cannon Thunderbird: Shunichi Toki (Tokyo Revengers)
Hydra: Fumi Aikawa
Hydra Sister #1 and 3: Risae Matsuda (Cheat Kusushi no Slow Life: Isekai ni Tsukurou Drugstore)
Hydra Sister #2 and 4: Satsumi Matsuda (Kageki Shoujo!!)
Anisong singer YURiKA (Beastars ending themes, Houseki no Kuni opening theme) will perform an insert song titled “Miracle Step” in the anime.
Hisashi Saitou (Sora no Otoshimono) is helming the anime at animation studio Quad. Katsuhiko Takayama (Ange Vierge) is handling the series composition, Kazuya Morimae (Masou Gakuen HxH chief animation director) is designing the characters, and manzo (Monster Musume no Iru Nichijou) is composing the music.
Mizusaki originally published the fantasy comedy manga as a one-shot in Comic Meteor in April 2019 and subsequently began regular serialization in the magazine. Flex Comix shipped the third volume on October 12.
Source: Comic Natalie