- 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
One-time Romulan hero who fell from grace after protesting Romulan warmongering.
Jarok failed a loyalty test by defecting to the Federation. He died by his own hand in 2366.