Sleepy Princess in the Demon Castle is a 2020 anime based on the manga series by Kagiji Kumanomata. It ran in Japan from October 6, 2020 to December 22, 2020. Funimation Entertainment is producing an English dub of the series, which premiered on the FunimationNow streaming service on February 22, 2021.
Cast[]
| Image | Character | Seiyū | Dub Actor |
|---|---|---|---|
| Main Characters | |||
| Princess Syalis | Inori Minase | Kira Buckland | |
| Secondary Characters | |||
| Twilight the Demon King | Yoshitsugu Matsuoka | Alejandro Saab | |
| Demon Cleric Leonard | Kaito Ishikawa | Mike Haimoto | |
| Great Red Siberian | Chikahiro Kobayashi | J. Michael Tatum | |
| The Hero Akatsuki | Hiro Shimono | Nicholas Andrew Louie | |
| Quilladillo | Rikiya Koyama | Ben Lepley | |
| Castle Grunt Goblin | Shinya Takahashi | Ricco Fajardo | |
| Minotaur | Masashi Yamane | Gianni Matragrano | |
| Frankenzombie | Koichi Soma | Jim Foronda | |
| Neo Alraune | Sayaka Ohara | Michele Knotz | |
| Fire Venom Dragon | Takaya Kuroda | Jason Marnocha | |
| Poseidon | Takeo Otsuka | Kevin Thelwell | |
| Hades | Kishō Taniyama | Christopher Wehkamp | |
| Scissors Sorcerer | Junichi Suwabe | Kyle Igneczi | |
| Harpy | Ayaka Ohashi | Morgan Garrett | |
| Hypnos | Shinichirō Miki | Robbie Daymond | |
| Cubey | Ari Ozawa | Jad Saxton | |
| Queen Aurora Nem Lis Goodereste | Saori Hayami | Elizabeth Maxwell | |
| Waker | ¿? | Meli Grant | |
| Elder | Motomu Kiyokawa | Andy Barnett | |
| High-Rank Skeleton Soldier | Yoshinori Nakayama | Christopher Guerrero | |
| Two-Headed Dragon | Kosuke Kobayashi | Brendan Blaber | |
| Item Storage Guard | Hiroya Egashira | Kamran Nikhad | |
| Scaly Reindeer | Yoshinori Nakayama | Anthony Sardinha | |
| Glow o' Wisp | Marie Miyake | Dani Chambers | |
| Monster Shroud | Yū Kitada | Mike Pollock | |
| Sand Dragon | ¿? | Meli Grant | |
| Bigwig Penguin | Masumi Tazawa | Howard Wang | |
| Ice Golem | Shunichi Maki | Ian Sinclair | |
| Bianco | Tomokazu Sugita | Kieran Flitton | |
| Florence | Aoi Yūki | Xanthe Huynh | |
| Minor Characters | |||
| Alazif | Ayane Sakura | Suzie Yeung | |
Episodic Characters[]
| Image | Character | Seiyū | Dub Actor | Episode |
|---|---|---|---|---|
| Minister | ¿? | Mike Pollock | 1 | |
| Baddie Diamond | ¿? | Cedric Williams | 1 | |
| Killer Clown | ¿? | Jason Marnocha | 1 | |
| Elder | Motomu Kiyokawa | Andy Barnett | 1, 13 | |
| Stamp Cat | Satomi Arai | Marissa Lenti | 2 | |
| Forest Elder | Chō | Michael Sorich | ||
| Killer Rhino Beetle | Sakurako Aoyama | Sarah Wiedenheft | ||
| Ghost Shroud | Yū Kitada | Bryce Papenbrook | 2, 6 | |
| Jester Soldier | Shōta Hayama | Brendan Blaber | 3 | |
| Killer Snowman | Sachiko Okada | Mark Allen Jr. | 4 | |
| Demi Polar Bear | Tsuyoshi Minamijima | Justice Washington | ||
| Evil Tree Spirit | Tesshō Genda | Ian Sinclair | 5 | |
| Bubble Soldier | Fumie Morisawa | Emily Frongillo | 6 | |
| Professor Gearbolt | Hōchū Ōtsuka | Kent Williams | ||
| Ker | Yukina Komatsu | Alexis Tipton | 7 | |
| Ros | Yurie Kozaki | Dawn M. Bennett | ||
| Ber | Yukina Tomatsu | Kara Edwards | ||
| Cursed Dentist | Taku Yashiro | Aaron Dismuke | 8 | |
| Evening Star the Paladin | ¿? | Edward Bosco | 12 | |
| Morgen the Paladin | Kenta Miyake | Marc Swint |
Additional Voices[]
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Transmission via Streaming[]
| Company | Date | Category | Format | Content | Country | |
|---|---|---|---|---|---|---|
|
February 22, 2021 | Anime | Digital | 12 Episodes | United States | 
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External Links[]
- Sleepy Princess in the Demon Castle at the Internet Movie Database
- Sleepy Princess in the Demon Castle (anime) at Anime News Network's encyclopedia