Gadren was a male Besalisk from Corellia. He joined the Alliance to Restore the Republic's Sixty-First Mobile Infantry after the persecution of his family and he had served with the Sixty-First so for many years being present for their crippling campaign on Ferrok Pax shortly after he joined. He was a warrior poet, often times singing in the trenches to boost morale. He recruited Hazram Namir during open recruitment on the planet Crucival. Gadren saw Namir rise up the ranks and later served under First Sergeant Namir through many battles of the Galactic Civil War. He fought in battles such as that on Haidoral Prime and Inyusu Tor, where he lost one of his four arms.