- 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
A Class M planet of dark-skinned, pre-technological humanoids.
The Ligonians possess a strict code of honor and rulers determined by their bride's wealth; an orbital control station may be operated by another entity. As the source of a rare "medicinal substance" that is the only cure known for Anchilles fever, it is visited by the U.S.S. Enterprise NCC-1701-D circa stardate 41235. The planet and its people were known to the Federation as far back as the 2320's, when at least one native took part in a wrestling match at Starfleet Academy.