Cala is a mermaid from Princess TV movie. She is portrayed by an actress, Shileen Paton.
Cala was an injured mermaid who spent her recovery time at Princess Ithaca's castle. While moving around the castle, she used a wheelchair, since mermaid tails are not practical on land. William Humphries saw Cala's tail on their first meeting, which was a first glimpse to the mythical world for him. Cala swam home after the wedding of Ithaca and William.