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 to December 22, 2020. Sound Cadence Studios is producing an English dub of the series for FUNimation Entertainment, which will premiere on the FunimationNow streaming service on February 22, 2021.
English Voice Cast
Main Cast
- Alejandro Saab - Twilight the Demon King
- Kira Buckland - Princess Syalis
Secondary Cast
- Ben Lepley - Quilladillo
- Christopher Guerrero - High-Rank Skeleton Soldier
- Christopher Wehkamp - Hades
- Elizabeth Maxwell - Queen Nemlis/Female Narrator
- Gianni Matragrano - Minotaur
- J. Michael Tatum - Great Red Siberian
- Jason Marnocha - Fire Venom Dragon
- Jim Foronda - Frankenzombie
- Kevin Thelwell - Poseidon
- Michele Knotz - Neo Alraune
- Mike Haimoto - Demon Cleric Leonard
- Morgan Lauré - Harpy
- Nicholas Andrew Louie - Dawner the Hero
- Ricco Fajardo - Castle Grunt Goblin
- Robbie Daymond - Hypnos
Minor Cast
- Aaron Campbell - Paladins (ep12)
- Aaron Dismuke - Cursed Dentist
- Aimee Smith - Teddy Demons
- Alexis Tipton - Ker
- Alyssa Dumas - Teddy Demons
- Amber Lee Connors - Teddy Demons
- Andy Barnett - Elder (ep1)
- Anthony Sardinha - Paladins (ep12), Scaly Reindeer
- Brandon McInnis - Paladins (ep12)
- Brendan Blaber - Gummy (ep1), Jester Soldier (ep3), Rotten Zombies, Two-Headed Dragon
- Brent Mukai - Doc Anteater (ep8), Red Siberians, Rotten Zombies
- Bryce Papenbrook - Ghost Shroud, Paladins (ep12)
- Bryn Apprill - Dawner the Hero (Young)
- Caleb Morphy - Paladins (ep12)
- Cedric Williams - Baddie Diamond (ep1)
- Christopher Guerrero - Tire Genie (ep4)
- Dani Chambers - Glow O' Wisp
- David Matranga - Rotten Zombies
- Dawn M. Bennett - Ros
- Devin Rochford - Paladins (ep12)
- Edward Bosco - Evening Star the Paladin (ep12)
- Emily Frongillo - Biting Battery Pack (ep7), Bubble Soldier (ep6)
- Howard Wang - Bigwig Penguin
- Ian Sinclair - Evil Tree Spirit (ep5), Ice Golem, Rocket Turtle (ep4)
- Jād Saxton - Cubey
- Jason Marnocha - Killer Clown (ep1)
- Jonathan McInnis - Paladins (ep12)
- Justice Washington - Demi Polar Bear (ep4)
- Kamran Nikhad - Item Storage Guard, Paladins (ep12)
- Kara Edwards - Ber
- Kent Williams - Professor Gearbolt (ep6), Rotten Zombies
- Kieran Flitton - Bianco
- Kira Buckland - Teddy Demons
- Kyle Igneczi - Scissors Sorcerer
- Laurie Jackson - Teddy Demons
- Marc Swint - Morgen the Paladin (ep12), Paladins (ep12)
- Marissa Lenti - Stamp Cat (ep2), Teddy Demons
- Mark Allen Jr. - Killer Snowman (ep4)
- Meli Grant - Sand Dragon, Waker
- Michael Sorich - Forest Elder (ep2), Rotten Zombies
- Michelle Marie - Eggplant Seal, Teddy Demons
- Mike Pollock - Minister (ep1), Monster Shroud
- Natalie Van Sistine - Teddy Demons
- Reagan Murdock - Red Siberians
- Sarah Wiedenheft - Killer Rhino Beetle (ep2), Teddy Demons
- Stacy Morphy - Teddy Demons
- Steven Kelly - Kisho
- Suzie Yeung - Alazif, Teddy Demons
- Xanthe Huynh - Florence
