A veteran commander, Ackbar led the defense of his homeworld, Mon Cala, during the Clone Wars and then masterminded the rebel attack on the second Death Star at the Battle of Endor. Ackbar realized the rebels had been drawn into a trap at Endor, but adjusted, with his fleet buying valuable time for the attack to succeed. After the Battle of Endor, Ackbar became a Grand Admiral in the New Republic, winning many victories including the pivotal Battle of Jakku. He retired to Mon Cala, but was coaxed back into service with the Resistance by Leia Organa.

Quarren, or "Squid Heads" as they are sometimes rudely called, are an alien species characterized by the four tentacles that protrude from their jaws. They have deep turquoise eyes, and each hand is capped with finned or suction-cup tipped fingers. They are capable swimmers, and like the squids they resemble, they are able to spit out clouds of ink as a defensive measure. Quarren hail from the planet Mon Cala, a world they share with the Mon Calamari. During the Clone Wars, the Separatists backed a Quarren insurrection that plunged the planet into civil war.

Also known as Mon Calamari or Dac, Mon Cala is a a beautiful aquatic world filled with lush coral reefs and kelp forests bathed by the light of twin suns. It is home to the Mon Calamari and Quarren people. The two cultures have long clashed over their differences, but under the rule of the 82nd King of Mon Cala, Yos Kolina, these disputes were kept civil and respectful. His sudden assassination and the arrival of Separatist forces during the Clone Wars tipped the scales to civil war, with the Quarren staging an uprising against the Mon Calamari, backed by Confederacy forces and Karkaradon leader, Riff Tamson. It was up to the Jedi and Republic envoys to help young Prince Lee-Char, heir to the Mon Cala throne, restore peace to the planet.

The heir to the throne of Mon Calamari during the Clone Wars, Prince Lee-Char carried the burdens of his home world following the assassination of his father, King Yos Kolina. Separatist agitators began stirring up the undercurrents of hostility between the Mon Calamari and the Quarren, pushing the planet towards civil war. Despite his inexperience, Lee-Char longed to unite his people, but could not find the way. Surrounded by wise advisors, Lee-Char concentrated on survival as war erupted in the oceans of Mon Cala. But he did not give up hope in unifying the planet in resisting the Separatists.

A short, prideful Mon Calamari, Quarrie was a master engineer who created the Blade Wing — commonly known as the B-wing. He enjoyed his work, and was eager to experiment in speed, agility, and weaponry, though he was no pilot himself. During the early days of the rebellion, Quarrie gifted his B-wing to Hera and Phoenix Squadron, helping turn the tide in one key battle and giving the fleet some much-needed firepower.

The gentle Mon Calamari people brought more than their determination to restore freedom to the galaxy when they joined the Rebel Alliance. They also brought a fleet of powerful capital ships. These immense vehicles were a startling contrast to the straight-lined shapes favored by the Imperial fleet. Whereas the Imperial Star Destroyer resembles a pointed dagger in shape, a Mon Calamari cruiser lacks hard angles, and is covered with ovoid forms suggesting an organic sculpture. Despite their smooth lines, these vessels pack an enormous punch. Turbolasers, ion cannons, tractor beam projectors and shield generators dot the flowing surface of the ships.