- 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
Resident of a colony that settled on planet Orellius in 2360 and rejected modern technology. When the colony was discovered by Benjamin Sisko and Miles O'Brien, its leader, Alixus, sent Cassandra to seduce Sisko in the hopes that he would want to live there. Failing that, she was offered a chance to leave the planet, but Cassandra opted to remain with the colony, being a believer in Alixus' anti-technology teachings.