Great Red Siberian is a monster of the beast species and is the Demon King's faithful dog.
Great Red Siberian values discipline and wants Princess Syalis to act like the hostage she is. He has served the Demon King for a long time and enforces the Demon Castle rules through his troops of Red Siberians.

(Source: Sleepy Princess Wiki)

Sshhh! Princess Syalis is trying to get a good night's sleep. Some shut-eye. Forty winks. Catch some Z's. Long ago in olden times when people and demons lived together in—well, disharmony, really—a demon king kidnaps a human princess and imprisons her in his castle. Bereft, the princess's subjects beat their chests in anguish…until a hero arises to spearhead Project Rescue Our Princess! While waiting for her knight in shining armor, what's an imprisoned princess to do...? Teddy-bear guards with bat wings are all very well, but her dungeon cell is bo-o-o-ring! So, she decides to wile away the long hours by sleeping. Now if only she could get comfortable…and didn't suffer from insomnia... 
 
(Source: VIZ Media)

[Twitter](https://twitter.com/kobayasidesuyo)

A Japanese voice actor and actor. In 2007, he joined the Yen Theater Research Institute before he was promoted to a Drama Group Yen Membership. He is best known for voicing [Saichi Sugimoto](https://anilist.co/character/124704/) in [Golden Kamuy](https://anilist.co/anime/99699/) and [Legoshi](https://anilist.co/character/125168/) in [Beastars](https://anilist.co/anime/107660/).

__Non-anime roles:__
- Von Lycaon - Zenless Zone Zero (VG)
- Male V  - Cyberpunk 2077

[Twitter](https://twitter.com/jmichaeltatum)

Married to fellow voice actor [Brandon McInnis](https://anilist.co/staff/127809/).

Sshhh! Princess Syalis is trying to get a good night's sleep. Some shut-eye. Forty winks. Catch some Z's. Long ago in olden times when people and demons lived together in—well, disharmony, really – a demon king kidnaps a human princess and imprisons her in his castle. Bereft, the princess's subjects beat their chests in anguish…until a hero arises to spearhead Project Rescue Our Princess! While waiting for her knight in shining armor, what's an imprisoned princess to do …? Teddy-bear guards with bat wings are all very well, but her dungeon cell is bo-o-o-ring! So, she decides to wile away the long hours by sleeping. Now if only she could get comfortable…and didn't suffer from insomnia…
 
(Source: Viz Media)

Chibi shorts to Maou-jou de Oyasumi released on the anime's Twitter page.

Red Siberian Kai