- 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
Leader of the mentally advanced Talosians who captured U.S.S. Enterprise Captain Christopher Pike and attempted to convince him to live a life in captivity. Although failing at this task and being forced to let Pike escape, The Keeper did allow Pike to return after a disfiguring accident, allowing Pike to live the rest of his life under an illusion of youth and health.