The story is set in London and follows Katrielle as she solves mysteries with her talking dog Sherl.
Kana Hanazawa
Katrielle "Kat" Layton (voice)
Kyousuke Ikeda
Noah Montoir (voice)
Hibiku Yamamura
Geraldine Royer (voice)
Jurota Kosugi
Sheri (voice)
Soma Saito
Luke Triton (voice)
Yohei Tadano
Darjeeling Aspoirot (voice)
Koichi Yamadera
Professor Hershel Layton (voice)
