Sarge is an old mandalorian, a loner, living in rocky parts of Tatooine and keep mostly to himself. The only contact he has is with the Sand people and the Jawas part from helping passing travellers when needed.
His armour is put together and updated many times whenever he finds parts that might be better than the old ones. Trading with the Jawas is the main source for parts.
Behind the armor is Janne Sandin from Göteborg, Sweden. When not doing invasions as a Merc, Janne is also a member of Nordic Base as Chewbacca and Swedish Garrison as Darth Vader. Part from wearing Star Wars costumes, he is a digital manager at a pharmaceutical company.