Franges, a Human of the male gender, held the rank of captain within the Imperial Army. He fought for the reconstituted Sith Empire during the conflict known as the Galactic War. Deployed to the planet of Quesh amidst the Quesh war, Captain Franges found himself positioned at the Empire's advance base. While there, his unit picked up a message from the Three Families mentioning an experimental formula being transported to Attis Station nearby for evaluation. Franges, who was addicted to both adrenal and stimulant substances, decided he wanted to take it for himself instead of giving it to his soldiers. Therefore, he enlisted some of his Imperial troops to help him get the formula.
The character Captain Franges is featured on Quesh in Star Wars: The Old Republic, a video game developed by BioWare and launched in 2011. In the game, he tasks Imperial players with the quest "Adrenal Appropriation."