Yuko Sanpei

as Butt Detective (voice)

Ayaka Saito

as Brown (voice)

Kazuhiro Yamaji

as Butt Dandy (voice)

Seiran Kobayashi

as Panta (voice)

Inuko Inuyama

as Itako (voice)

Ryosuke Takei

as Itakichi (voice)

Takahiro Sakurai

as Kaitō U (voice)

Ikkei Watanabe

as Chief Maltese (voice)

Kenji Sugimura

as Kubifutoshi (voice)

Tetsuhiro Ikeda

as Permanent (voice)

Katsuyuki Konishi

as Mimitogari (voice)

Makoto Nakamura

as Koimayu (voice)