- 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
A member of the tripartite Council of Elders on Organia in 2267. Trefayne reported escalating Klingon-Federation hostilities to Ayelborne. Trefayne, a noncorporeal lifeform, did not like being around violence.