Prince Robin, also known as Zalard, originates from the 1991 animated film *Hello Kitty no Mahō no Mori no Ohime-sama*. Initially presented as Prince Robin, his true identity is revealed as Zalard, the ruler of Zalard's Fortress.

His background connects him to the antagonist Guala, a lake monster and ruler of Guala Pond. Zalard governs Zalard's Fortress while Guala rules the adjacent aquatic domain, positioning Zalard as a secondary antagonist within the narrative.

The transition from Prince Robin to Zalard implies a significant backstory involving a shift in allegiance or status. His role centers on reinforcing the conflict faced by protagonists Kitty and Mimmy in their quest to break a magical spell affecting the kingdom.

This film appearance remains his sole documented role within official Hello Kitty media.