Flounder is a major character in Disney's 1989 animated feature film, The Little Mermaid. He is Ariel's best friend, who regularly embarks on her adventures despite his cowardly demeanor. Though his name would imply otherwise, he is not a flounder, but rather a tropical fish.
Add actors/actresses and cast the roles/films/series that they were rumored, considered, offered, negotiated, auditioned, turned down, and/or originally casted before getting recasted. (Please double-check in research.)
