- 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 humanoid race related to the Ferengi and, like them, unsensible to telepaths — or at least the Betazeds. The U.S.S. Enterprise crew encountered a Doptherian named Gorta, while searching for the Duras sisters. Constable Odo knows of them from various dealings on space station Deep Space Nine. In appearance their bald heads are covered with a slight mottling, a Ferengi-like nose and a Lyseppian-like extended cranium and a ridge from the rear of the head to the stubby, pointed earflap.