He-Man and the Masters of the Universe (1983)

S2E52 Beauty and the Beast

Skeletor seizes Teela and Orko, imprisoning them within the gloomy realm of Morragor, where a fearsome beast, bound to Skeletor’s will, rules. Despite his terrifying looks, the creature reveals a kind-hearted nature, treating the captives with respect and compassion. As He-Man sets off to save his friends, Teela discovers the monster's true spirit and urges him to liberate himself from Skeletor's control. Through her encouragement, they begin to plot a way for the beast to reclaim his freedom and escape the dark fate imposed upon him.