- 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 officer, who fought against the Dominion in the Tyra System, losing many friends. Kagan accompanied Internal Affair Deputy Director Sloan on an investigation of Julian Bashir, who was suspected of espionage.