- 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
Neutral race of mercenaries with cracked-looking skin who are trusted to operate in both Romulan and Federation space. They are empathetically sensible, at least to Betazoids. A freighter captain, however, was lying about taking the Romulan defectors safely away and was killed by N'Vek. A Corvallen was one of the two official witnesses to Noonien and Mariana Soong's wedding.