Thok was a Jem'Hadar sub-garn.
In 2372, Thok's ship intercepted the vessel that Kira Nerys, Odo and Worf were aboard on a mission to Daborat V. Odo was able to use his status as a Founder to force Thok to let him speak to the officer in charge. (DS9 novel: The Heart of the Warrior)
- Thok's name does not conform to the Jem'Hadar naming conventions established in "The Jem'Hadar", although Odo noted the ship that Thok served on was of a different design to the Jem'Hadar vessels that Odo had previously seen.