- 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
Rude, self-important propulsion specialist working for Starfleet. His warp drive efficiency upgrade experiments brought him to the U.S.S. Enterprise NCC-1701-D in 2364. Kosinki's ideas proved to be of minimal value.