Mamoru Miyano as Haruo Sakaki (voice)

Takahiro Sakurai as Metphies (voice)

Kana Hanazawa as Yuko Tani (voice)

Tomokazu Sugita as Martin Lazzari (voice)

Yuki Kaji as Adam Bindewald (voice)

Reina Ueda as Maina (voice)

Ari Ozawa as Miana (voice)

Daisuke Ono as Eliott Leland (voice)

Kenyu Horiuchi as Unberto Mori (voice)

Kazuya Nakai as Halu-Elu Dolu-Do (voice)

Kazuhiro Yamaji as Endurph (voice)

Saori Hayami as Haruka Sakaki (voice)

Kenichi Suzumura as Akira Sakaki (voice)

Kanehira Yamamoto as Takeshi J. Hamamoto (voice)