- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
Son of General Martok who had a reputation for being an exceedingly belligerent warrior, even for a Klingon. Drex was part of the massive Klingon invasion force at Deep Space 9 on Stardate 49011. During their visit to the station, Drex and four other Klingons attacked Garak in his tailor shop, breaking seven of his transverse ribs and fracturing his clavicle.