His size alone made Thok a formidable opponent in hand-to-hand combat. Thok's fighting abilities inspired terror and awe in his opponents with his seemingly random fury. By the time his opponents realized that the chaotic frenzy was actually a precisely timed and executed combination, it was too late.
Thok was also the brother of Gorc. When Imperial slavers came to Gamorr, Thok sold out his brother so that he would not be taken into captivity.[1]
He was also one of nine Gamorrean guards on duty in Jabba's Palace in 4 ABY. He was an interior guard, and served alongside Thug.