Sleepy Princess in the Demon Castle Facts, FAQ & Common Questions
2020 · TV Tokyo · Status: Ended · Rated: TV-14
Frequently Asked Questions About Sleepy Princess in the Demon Castle
Direct, verified answers to the most common queries regarding episodes, renewals, watch order, and streaming availability.
How many seasons and episodes does Sleepy Princess in the Demon Castle have?
Sleepy Princess in the Demon Castle has 1 season and 12 total episodes, spanning from its premiere on October 6, 2020 to December 22, 2020.
Is Sleepy Princess in the Demon Castle renewed, ended, or canceled?
Sleepy Princess in the Demon Castle has concluded its run and is officially ended.
How long does it take to binge watch Sleepy Princess in the Demon Castle?
It takes 4h 48m (288 minutes) to watch the complete run of Sleepy Princess in the Demon Castle. At a standard pace of 2 hours per day, you will finish the entire series in approximately 3 days. Yes! At 4.8 hours total, you can comfortably finish this in a single weekend with about 2.4 hours per day.
What is the highest-rated episode of Sleepy Princess in the Demon Castle?
The highest-rated episode is Season 1, Episode 3 ("The Princess and Forbidden Knowledge"), which holds an outstanding rating of 6.5/10 based on 2 audience ratings.
Where can you stream or watch Sleepy Princess in the Demon Castle?
Sleepy Princess in the Demon Castle is available for streaming on Crunchyroll, Crunchyroll Amazon Channel. Availability may vary by regional territory, subscription tier, and digital purchase availability.
What is the official age rating for Sleepy Princess in the Demon Castle?
Sleepy Princess in the Demon Castle has an official content rating of TV-14.
Who are the lead actors in Sleepy Princess in the Demon Castle?
The primary ensemble cast includes Sayaka Ohara as Neo Alraune (voice) (age 50), Inori Minase as Princess Syalis (voice) (age 30), Kaito Ishikawa as Demon Cleric (voice) (age 32), Yoshitsugu Matsuoka as Demon King Tasogare (voice) (age 40).
Ensemble Cast & Current Ages
Lead cast members, their character identities, and current ages calculated from official biographical records:
| Actor | Character | Current Age |
|---|---|---|
| Sayaka Ohara | Neo Alraune (voice) | 50 |
| Inori Minase | Princess Syalis (voice) | 30 |
| Kaito Ishikawa | Demon Cleric (voice) | 32 |
| Yoshitsugu Matsuoka | Demon King Tasogare (voice) | 40 |
| Hiro Shimono | The Hero Akatsuki (voice) | 46 |
| Rikiya Koyama | Majiro the Hedgehog (voice) | 62 |
| Kouichi Souma | Frankenzombie (voice) / Ghost Wrapping Paper (voice) | 44 |
| Junichi Suwabe | Caesar Magician (voice) | 54 |
Editorial Verification & Sources
All production facts, air dates, cast credentials, and streaming metadata for Sleepy Princess in the Demon Castle are compiled from official broadcaster archives, TMDB, and Wikidata records. Last verified on September 25, 2026.