- 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
Geologist aboard the Enterprise-D. Davies participated in the geological survey of planets in the Selcundi Drema sector in 2365 which was being supervised by Acting Ensign Wesley Crusher. Davies attempted to assist Crusher in the project, but his offers of help only served to undermine young Crusher's confidence.