Sleepy Princess in the Demon Castle

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 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 Dismuke - Cursed Dentist
• Aimee Smith - Teddy Demons
• Alexis Tipton - Ker
• Amber Lee Connors - Teddy Demons
• Andy Barnett - Elder (ep1)
• Anthony Sardinha - Scaly Reindeer (ep1)
• 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
• Bryn Apprill - Dawner the Hero (Young)
• Cedric Williams - Baddie Diamond (ep1)
• Christopher Guerrero - Tire Genie (ep4)
• Dani Chambers - Glow O' Wisp
• David Matranga - Rotten Zombies
• Dawn M. Bennett - Ros
• 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)
• Justice Washington - Demi Polar Bear (ep4)
• Kamran Nikhad - Item Storage Guard
• Kara Edwards - Ber
• Kent Williams - Professor Gearbolt (ep6), Rotten Zombies
• Kira Buckland - Teddy Demons
• Kyle Igneczi - Scissors Sorcerer
• 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
• Reagan Murdock - Red Siberians
• Sarah Wiedenheft - Killer Rhino Beetle (ep2), Teddy Demons
• Steven Kelly - Kisho
• Suzie Yeung - Alazif, Teddy Demons