Vax Potorr was a hairless Human man, who began his life as a crook in the Coruscant underworld. When the Sith–Imperial War erupted, he chose to side with the Fel Empire instead of the Galactic Alliance, who were defending against the Yuuzhan Vong. In this conflict, he participated in the Battle of Botajef as a member of Joker Squad. Potorr is known for the murder of the Mandalorian named Vevec.
By 137 ABY, he remained a member of Joker Squad, which served within the 407th Stormtrooper Division of the Galactic Empire. During the Battle of Borosk, Joker squad spearheaded the attack on the 908th's stronghold. He became the first member of Joker squad to die, after detonating a landmine, resulting in his demise.