That Brilliance Is a Diamond

Tomo Saeki

Mondo Ooya (voice)

Yui Horie

Rockna Hiiragi (voice)

Shigeru Chiba

Professor Ichiroubei Hiiragi (voice)

Yuko Mizutani

Jāne (voice)

Kazuhiko Inoue

Count Ludwig Presto Von Meinstein Collection (voice)

Yuka Imai

Guko (voice)

Maria Yamamoto

Repuri (voice)

Yumi Kakazu

Songstress of the Flower Garden (voice)

Mika Kanai

Beginner (voice)

Yumiko Kobayashi

Luke (voice)

Shin-ichiro Miki

Zaha (voice)

Takehito Koyasu

Redda (voice)