The crew of ‘Return of the Jedi’ mocked the character design of Admiral Ackbar, deeming it too ugly. Director Richard Marquand refused to alter it, saying, “I think it’s good to tell kids that good people aren’t necessarily good looking people and that bad people aren’t necessarily ugly people.”

Admiral Ackbar

Fleet Admiral Gial Ackbar is a fictional character in the Star Wars franchise. A member of the amphibious Mon Calamari species, Ackbar is the foremost military commander of the Rebel Alliance, leading a small underequipped navy. Ackbar’s tactical flexibility and military intelligence aid the Alliance’s major combat operations against the Galactic Empire. Ackbar played a supporting role in the 1983 film Return of the Jedi, and later became a prominent character in the novels, comic books and other media of the Star Wars expanded universe.

With his distinctive fish-like skin, high-domed head, and large fish-like eyes, Ackbar was realized in Return of the Jedi through the use of a half-body puppet and slip-on mask, depending on the camera … Continue Reading

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Source: https://en.wikipedia.org/wiki/Admiral_Ackbar