Butt Detective Facts, FAQ & Common Questions
2018 · NHK Educational TV · Status: Returning Series · Rated: Not Rated
Frequently Asked Questions About Butt Detective
Direct, verified answers to the most common queries regarding episodes, renewals, watch order, and streaming availability.
How many seasons and episodes does Butt Detective have?
Butt Detective has 1 season and 123 total episodes, spanning from its premiere on May 3, 2018 to November 15, 2025.
Is Butt Detective renewed, ended, or canceled?
Butt Detective is currently an active returning series with future seasons planned or in development.
How long does it take to binge watch Butt Detective?
It takes 41h 0m (2460 minutes) to watch the complete run of Butt Detective. At a standard pace of 2 hours per day, you will finish the entire series in approximately 21 days. Not realistic for a 48-hour weekend. At 41 total hours, watching at a healthy 2 hours per day will take approximately 21 days.
Where can you stream or watch Butt Detective?
Butt Detective is available for streaming on Animation Digital Network, Amazon Prime Video, Hulu, U-NEXT. Availability may vary by regional territory, subscription tier, and digital purchase availability.
What is the official age rating for Butt Detective?
Butt Detective has an official content rating of Not Rated.
Who are the lead actors in Butt Detective?
The primary ensemble cast includes Yuko Sanpei as Butt Detective (voice) (age 40), Ayaka Saito as Brown (voice) (age 38), Takahiro Sakurai as (voice) (age 52), Ikkei Watanabe as (voice) (age 63).
Ensemble Cast & Current Ages
Lead cast members, their character identities, and current ages calculated from official biographical records:
| Actor | Character | Current Age |
|---|---|---|
| Yuko Sanpei | Butt Detective (voice) | 40 |
| Ayaka Saito | Brown (voice) | 38 |
| Takahiro Sakurai | (voice) | 52 |
| Ikkei Watanabe | (voice) | 63 |
| Takayuki Sugo | (voice) | 74 |
| Reika Uyama | (voice) | 31 |
Editorial Verification & Sources
All production facts, air dates, cast credentials, and streaming metadata for Butt Detective are compiled from official broadcaster archives, TMDB, and Wikidata records. Last verified on September 25, 2026.