Kul Teska was a Skakoan male mercenary active during the Clone Wars for the Confederacy of Independent Systems. Before he took a criminal's path, Teska was a respected scientist in the Techno Union. However, an accident with his pressure suit left Teska disfigured and forced him to leave the Union. With the help of his knowledge in the field of cybernetics, Teska rebuilt his pressure suit, equipping it with a variety of weapons, and became a gun-for-hire. All the while, Teska continued his own experiments with gravity and began construction of the Gravitic polarization beam, a superweapon with enough firepower to collapse a star. Teska's experiments soon attracted the attention of Count Dooku, the leader of the Confederacy. During the Clone Wars, Teska came into Dooku's service and was provided with a laboratory on the planet Behpour in the Naboo system, where the Skakoan continued the development of his weapon.