Rex is digging up facts...
Yuko Sanpei
Butt Detective (voice)
Ayaka Saito
Brown (voice)
Takahiro Sakurai
Kaitō U (voice)
Ikkei Watanabe
Chief Maltese (voice)
Rio Suzuki
Lulu (voice)
Hiroshi Kamiya
Luca (voice)
Shigeru Chiba
Zaza (voice)
Akira Kamiya
Pepe (voice)
Akifumi Zako
Natsuko Takahashi
