- 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
His vessel particpated in the officer-exchange program between Starfleet and the Klingon Empire, and Commander Riker served as Kargan's first officer. Through an incident involving a mysterious bacteria eroding the Pagh's hull, Riker earned Kargan's respect.