Born on Concord Dawn into a clan of Mandalorians who still followed the old ways of war, Tin Tjarin and his brother were both raised in the ancient traditions of combat. They eventually went off to use these talents as bounty hunters, working together to bring in high value targets for wealthy contractors as well as spending much of his time gambling to add to his profit. When the Clone Wars broke out, Tjarin saw it as an opportunity for great profit, but soon the war took a turn. Separatist forces attacked his homeworld in search of ancient Mandalorian technology, killing his brother and scattering his clan. Tjarin has since joined with the 66th Battalion to find his brother's killers and avenge his clan.

Revenge, maybe also paying off his massive amount of debt

Debts=Tjarin is easily swayed by the idea of profit, and gambling is a weakness of his. Eventually his luck ran out and he became greatly indebted to the Black Sun

"Donald Glover with Finn's hair" -Zeno