Full cast of Sleepy Princess in the Demon Castle

Inori Minase

Princess Syalis (voice)

12 episodes

Kaito Ishikawa

Demon Cleric (voice)

12 episodes

Yoshitsugu Matsuoka

Demon King Tasogare (voice)

12 episodes

Hiro Shimono

The Hero Akatsuki (voice)

12 episodes

Rikiya Koyama

Majiro the Hedgehog (voice)

12 episodes

Kouichi Souma

Frankenzombie (voice) / Ghost Wrapping Paper (voice)

12 episodes

Junichi Suwabe

Caesar Magician (voice)

12 episodes

Shinya Takahashi

Goblin Serf (voice)

12 episodes

Chikahiro Kobayashi

Red Siberian (voice)

12 episodes

Ayane Sakura

Aladdif (voice)

12 episodes

Sayaka Ohara

Neo Alraune (voice) / Harpy (voice)

12 episodes

Takeo Otsuka

Poseidon (voice)

12 episodes

Masashi Yamane

Minotauro (voice)

12 episodes

Takaya Kuroda

Flame Poison Dragon (voice)

12 episodes

Shin-ichiro Miki

Hypnos (voice)

12 episodes

Kisho Taniyama

Hades (voice)

12 episodes