- 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
Host to the Kahn symbiont in 2285, and wife of test pilot Torias Dax when he died in a test she warned him not to perform. Although Nilani was known to panic, almost 100 years later Dax host Jadzia apologized to Lenara Kahn for Torias having ignored her pleas.