Butt Detective poster

Butt Detective

TV Show 2018 20m/ep 8.7 /10 Returning
NHK Educational TV A NHK Educational TV Original
Directed by Hiroki Shibata

A tidy, unnerving mystery series for kids, Butt Detective follows a courteous, detail-oriented sleuth who always manages to straighten out strange puzzles that stump adults and children alike. Each episode sets up a small case, often involving a missing item, a mysterious noise, or a harmless... Read more

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Streaming availability last verified: January 14, 2026

About Butt Detective

A tidy, unnerving mystery series for kids, Butt Detective follows a courteous, detail-oriented sleuth who always manages to straighten out strange puzzles that stump adults and children alike. Each episode sets up a small case, often involving a missing item, a mysterious noise, or a harmless prank, and the detective sifts through clues with quiet patience and a touch of humor. He uses simple logic, clear observation, and an unusual trademark move to unmask culprits and restore order, and the stories keep stakes low and outcomes upbeat so younger viewers can follow without spoilers or scares.

Released in 2018, the series was directed by Hiroki Shibata and created by Natsuko Takahashi. The cast features voice actors including Yuko Sanpei as the title character and Ayaka Saito as Brown, with Takahiro Sakurai, Ikkei Watanabe, and Takayuki Sugo in supporting roles.

There aren't widely reported major industry awards tied to the show, which is common for small-format children's animation. That said, it has found a steady audience among its target age group rather than in awards circuits.

The main visual gag and the detective's polite, almost prim manner have become simple hooks that stick with viewers, so clips and short clips shared by parents and teachers tend to highlight the show's sillier beats. Its style is easy to adapt for classroom readings, storytime, and short-form online excerpts that emphasize the humor and the reveal.

Viewer ratings and the small pool of reviews suggest a favorable reception, with the listed average score indicating viewers liked the tone and characters. The series leans on themes of observation, kindness, and straightforward problem solving, showing kids that attention to detail and calm thinking can sort out most puzzles. Episodes are brief and structured, which keeps the pace suitable for young attention spans while still rewarding careful watching.

Details

Release Date
May 03, 2018
Episode Length
20m
User Ratings
3 votes
Type
TV Series
Seasons
1
Episodes
123
Network
NHK Educational TV
Status
Returning Series
Genres
Animation, Kids
Country
Japan
Studio
Toei Animation
External Links
View on IMDB

Cast

Yuko Sanpei

Yuko Sanpei

Butt Detective (voice)

Ayaka Saito

Ayaka Saito

Brown (voice)

Takahiro Sakurai

Takahiro Sakurai

(voice)

Ikkei Watanabe

Ikkei Watanabe

(voice)

Takayuki Sugo

Takayuki Sugo

(voice)

Reika Uyama

Reika Uyama

(voice)

Director: Hiroki Shibata

Created by: Natsuko Takahashi

Seasons (1 season, 123 episodes)

Season 1

Season 1

123 episodes - 2018

Frequently Asked Questions

Butt Detective is not currently available to stream, rent, or buy online in the US. Check back later for updates.

Butt Detective has 1 season with a total of 123 episodes.

With a rating of 8.7/10 from 3 viewers, Butt Detective is highly recommended and considered excellent by most viewers.

A tidy, unnerving mystery series for kids, Butt Detective follows a courteous, detail-oriented sleuth who always manages to straighten out strange puzzles that stump adults and children alike. Each episode sets up a small case, often involving a missing item, a mysterious noise, or a harmless pra...

Butt Detective stars Yuko Sanpei, Ayaka Saito, Takahiro Sakurai, Ikkei Watanabe, and Takayuki Sugo.

Butt Detective was created by Natsuko Takahashi.

Butt Detective was released on May 03, 2018.

Butt Detective is a Animation and Kids series.

Yuko Sanpei voices Butt Detective, the polite and meticulous super sleuth who solves a variety of mysteries. The character is known for blowing raspberries in the face of crime.

Ayaka Saito voices Brown, one of the recurring characters who appears alongside Butt Detective in the series. Brown takes part in the kid-friendly mysteries and adventures.

As of the provided data, Butt Detective has 1 season and 123 episodes. The show is listed as a returning series, which suggests more episodes may be planned.

Butt Detective is an animated kids series, so it's aimed at young viewers and features lighthearted mysteries and comic moments like the hero's raspberries. Parents may want to preview episodes for their own child, but the tone is generally playful and child oriented.