- 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
Humanoid who died in detention on Deep Space 9 in 2370 after a string of bad luck caused by a corrupting, probability-altering gambling device. His cellmate, Martus Mazur, took the device after Cos died.