Gial Ackbar is a male Mon Calamari of the planet Dac — Mon Cala — and the foremost military commander of the Alliance Fleet. He commands the Battle of Endor from the bridge of Home One in Star Wars: Episode VI Return of the Jedi (1983), puppeteered by Tim Rose and voiced by Erik Bauersfeld, and goes on to become a fleet admiral of the New Republic Defense Fleet.
He got there before the film did
Ackbar’s first appearance is a genuine piece of publishing trivia and the reason he belongs as much to this site’s comics coverage as to its film coverage. He was introduced in the daily newspaper strip storyline titled Revenge of the Jedi — after the film’s original working title — written by Archie Goodwin and drawn by Al Williamson, which ran through the Los Angeles Times Syndicate from 15 November 1982 to 21 January 1983, several months before the film reached cinemas. A supporting character in a licensed comic strip beat his own movie to print.
The Clone Wars retrofit
Current canon takes him back further still. The Clone Wars put Ackbar at the Battle of Mon Cala, helping secure Prince Lee-Char’s accession as King of Mon Cala and repelling the Confederacy — which turns the Mon Calamari cruiser fleet at Endor into the payoff of a much older story about one planet’s navy and the Empire that later occupied it.
The line
Two words, delivered flat, in the middle of the largest space battle in the trilogy. It’s a trap has had a second life as an internet meme so complete that it now obscures the scene it comes from, which is a shame, because the moment works: it is an experienced commander correctly reading a situation seconds too late, and the film gives him no chance to fix it.
What the novels did with him
Both continuities keep him in command. In Star Wars Legends he is the New Republic’s Supreme Commander and the fixed point in a military that keeps having political crises around him — Timothy Zahn’s Thrawn trilogy and Michael A. Stackpole’s X-Wing novels both use Ackbar as the officer whose competence is never in question even when his authority is. He sits as one of the three judges at Tycho Celchu’s treason trial in the X-Wing books, alongside Generals Horton Salm and Crix Madine.
Canon after Endor
Current canon follows a similar arc in different books: the founding of the New Republic Defense Fleet in Chuck Wendig’s Aftermath trilogy, and an old admiral still being consulted decades later. He is one of the few Alliance leaders whose post-war career the two shelves narrate at comparable length.
Why he endures
Because he is the anti-Jedi. Ackbar has no Force, no destiny and no personal grudge. He is a professional naval officer doing arithmetic about fleet positions under fire, and the Rebellion’s single greatest victory belongs to him rather than to anyone with a lightsaber.