Guild of Vindicators

The Guild of Vindicators was a cult of religious fanatics that was known to operate in the region of space containing Cheelit, whose ruler Lady Dhol referred to them derisively as "those stealers-of-eggs." Their symbol was a small skull clasp worn at the throat of a rough brown cassock. The precise nature of their beliefs is obscure, but they were known to have had an eye-for-an-eye world-view in which death was the only way to expiate one's sins. Their intolerance of Imperial atrocities and use of assassins like Clat the Shamer led them into direct conflict with the Galactic Empire, and they forced Dhol to take part in an attempt to assassinate Darth Vader to punish him for his myriad misdeeds.

Behind the Scenes
It is very likely that the Guild, like other dangerous cults such as the Jedi Order and the Church of the First Frequency, became a target of the Inquisitorius. It was going to be featured in Joe Bongiorno's and Rich Handley's article "Cult Encounters of the Star Wars Universe," but Star Wars Gamer was canceled before it was published.