Princess Delphina

History
Princess Delphina is the daughter of King Neptune and Princess of Atlantis. Not only does she appear in few episodes, like Leana, she doesn't have any development, serving mostly as the damsel in distress and love interest for Robyn. She is a kindhearted and proud woman, despite not being strong, she is the most Princess-like character out of all the Princesses. As a Warrior of Chronos, she helps the most she can and serves as an ambassador for Atlantis.

When she's out of the water, Delphina can turn her mermaid tail into legs to walk effortlessly; it is something every mermaid comes to learn to do.