Admiral Ackbar (played by Timothy M. Rose) is a character in the Star Wars fictional universe. He first appears in Star Wars Episode VI: Return of the Jedi and later is a supporting character in the Star Wars Expanded Universe of novels, video games, and comic books.
As described in the Expanded Universe series, Admiral Ackbar became a representative to his planet Mon Calamari's ruling council shortly after he finished school. After the Empire invaded Mon Calamari, Ackbar was captured and became a slave, for a time serving Grand Moff Tarkin.
After being freed, Ackbar helped design the B-Wing starfighter and leads the Rebels' space forces at the Battle of Endor. He is part of the New Republic's provisional government in Timothy Zahn's Thrawn trilogy, but retires from public service after an accident depicted in Kevin J. Anderson's Jedi Academy trilogy. In the The New Jedi Order series, Ackbar comes out of retirement to help fight the Yuuzhan Vong and dies of natural causes shortly before the war ends.