- 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
Planet: Tau Alpha C. A single member of a humanoid species, distinguished by a very enlarged cranial size and the ability to "phase." The Traveler is highly advanced and has the capability of using time, space, and thought alone to travel unimaginable distances.