- 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 technologically advanced humanoid race with enlarged cranial cavities, capable of injuring their subjects by magnifying the power of their own thoughts. On stardate 5121.5, the Vians used the crew of the U.S.S. Enterprise NCC-1701 landing party as subjects to test the worthiness of a species for survival in a threatened star system.