- 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
Trill scientist testing artificial wormhole theories on DS9 in 2372. His sister, Lenara Kahn headed the team. Otner was concerned Lenara's Kahn symbiont would reassociate with Jadzia's Dax symbiont.