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Sebastian is the trusted adviser of King Triton in the 1989 animated film The Little Mermaid. He appears in the novel Rise of the Isle of the Lost.


Before the formation of Auradon[]

      Further information: The Little Mermaid
Sebastian is King Triton's royal servant and composer. When Triton's daughter, Ariel, falls in love with a human, Sebastian tries to get her to forget about him, knowing that her father would be angry about it. However, Ariel ends up making a deal with the sea witch Ursula to become human, after which Sebastian tries to help her so that Prince Eric, with whom she fell in love, kisses her within three days, according to Ursula's deal. In the end, Sebastian makes Triton see that Ariel is really in love with Eric, so Triton ends up accepting it.

Rise of the Isle of the Lost: A Descendants Novel[]

MalEvieJay, and Carlos De Vil watched his wonderful musical performance at Arabella's party.



Text message from Sebastian in "Careful What You Wish For".