- 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
Commander Kaplan was a contemporary of Geordi La Forge and chief engineer on the U.S.S. Intrepid NCC-38907. Both engineers wanted to have the ship with the least wasteful power-conversion ratio.