 It is never actually stated, but it is quite likely that it was Athena's death, at the hands of humans, that caused Triton's prejudice towards them.The character will reportedly appear in the upcoming live-action adaptation of "The Little Mermaid", with the film also focusing on Ariel and her mother's relationship.Marina Del Rey, voiced by Sally Field, is a mermaid and the governess of King Triton's seven daughters, in charge of enforcing Triton's distant and formal parenting style and is the main antagonist.