- 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
Starfleet medical technician serving on the Enterprise-D. Calloway was romantically involved with Engineering officer Lt. Daniel Kwan when he committed suicide in 2370 due to empathic hallucinations.