A militant group of Troglyte miners on Ardana, led by Vanna, who struck against the privileged cloud city of Stratos to demand a share in the life their labour paid for.
The Disruptors are Troglytes who have turned to sabotage and hostage-taking against the rulers of Stratos, the city that floats above the mines of Ardana. They appear in the Original Series episode The Cloud Minders.
Their leader Vanna has served in Stratos and seen its art and comfort, from which the miners below are excluded. When the Enterprise arrives for a consignment of zenite needed to stop a plague, the Disruptors have hidden it, and High Advisor Plasus answers with torture.
McCoy finds that gas released by raw zenite dulls the mind, which is why the Troglytes seem inferior. To convince both sides, Kirk traps himself, Plasus and Vanna in a mine until the gas takes effect. Vanna then hands over the zenite in exchange for filter masks.