She is beriefly seen at the beginning and the end.
She is briefly seen at the beginning to see her niece, Melody.
Attina has a more main role in this movie. In the beginning, 12-year-old Attina is seen with her sisters and parents. When Pirates attack she gets stuck and Athena has to rescue her, Ten years after Athena's death, Attina tries to keep Ariel and her other sisters under control. At first, she is highly opposed to the idea of the Catfish Club but eventually joins in. She is the one to deliver the message that Ariel is missing to Triton and at the end is seen dancing.
- Her name closely resembles her mother's, Athena.