Season 1

Kana Hanazawa

Yūka Midarezaki (voice)

Ayumi Fujimura

Kyōka Midarezaki (voice)

Takayuki Kondo

Ōka Midarezaki (voice)

Haruka Tomatsu

Chika Midarezaki (voice)

Keisuke Oda

Ginka Midarezaki (voice)

Hiroki Yasumoto

Teika Midarezaki (voice)

Ryo Hirohashi

Hyōka Midarezaki (voice)

Rina Sato

Gekka Midarezaki (voice)

Rika Morinaga

Shiruku Kirisaki (voice)

Eri Kitamura

Akeru Nishikura (voice)

Shinji Kawada

Dr. Gebok (voice)

Yuko Goto

Raichō Hiratsuka (voice)

Satoshi Hino

Rindo Katsura (voice)

Ayako Kawasumi

Dr. Hell (voice)

Hideo Ishikawa

Dekamelon (voice)

Kan Tanaka

Inuhiko Saruwatari (voice)

Mai Nakahara

Chieri Sakurai (voice)

Minako Kotobuki

Hijiri Yamaguchi (voice)

Momoko Saito

Odessa A. Griffin (voice)