 Sebastian is slated to appear in the live-action remake of "The Little Mermaid".Daveed Diggs is in talks to provide his voice.Flounder is a yellow and blue tropical fish (despite the name, he is not a flounder) and Ariel's best friend, voiced by Jason Marin in the 1989 film, who also provided vocals in-character for the tie-in music album "Sebastian From The Little Mermaid".