Thrall was a term given by the Providers to the individuals of various species enslaved on the planet Triskelion. They were controlled by the master thrall, and trained by drill thralls and forced to participate in athletic competitions.
The thralls were later freed by Captain James T. Kirk's actions. (TOS: "The Gamesters of Triskelion")
External links[]
- Thrall at Wikipedia
- Thrall at Memory Beta, the wiki for licensed Star Trek works