Gelens was a male Rodian Sergeant who served the Galactic Republic during the Galactic War against the resurgent Sith Empire. In 3640 BBY, Gelens led a unit inside a Manka-class armored transport during the battle on Corellia. Their walker got shut down the whole team became trapped inside with limited air supply. Luckily, they were able to reach a Republic citizen on the holocomm, who brought along welding equipment and got Gelens and his men out.