Guarran, a Mon Calamari, held the position of Director of Shipyard Defense for Dac throughout the Galactic Civil War; he was known as Colonel.
Guarran, an original member of the Foamwander Five, was among the first to organize the Mon Calamari Resistance against the Imperial takeover of Dac. Following Dac's liberation, Guarran aimed to expand his involvement in protecting his home planet. Military officials from Mon Calamari initially opposed his involvement in the Foamwander Five, viewing him as more of a guerrilla fighter and his standing as nearly that of a terrorist leader. Regardless, Guarran gained their esteem and secured a position on the Mon Calamari Council.