宝石商リチャード氏の謎鑑定

Madoka Šiga

Saul Ranashinha (voice)

Takahiro Sakurai

Richard Ranashinha Dvorpian (voice)

Júma Učida

Seigi Nakata (voice)

Júiči Iguči

Haruyoshi Shimomura (voice)

Kana Hanazawa

Akiko Tanimoto (voice)

Masaja Macukaze

Jeffrey Claremmont (voice)

Čiwa Saitó

Mito Yamamoto (voice)

Čiaki Kanó

Toshiko Hata (voice)

Júki Kadži

Henry Claremmont (voice)

Eidži Takeuči

Keigo Hase (voice)