- 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
First officer of the Earth cargo ship Fortunate. Ryan was a space boomer (like Travis Mayweather), and disapproved of Mayweather's decision to join Starfleet. He was also bent on revenge for an attack by Nausicaans, and held a Nausicaan captive until Mayweather confronted him for putting cargo ship crews at risk. Because of this incident, Captain Keene later stripped Ryan of his rank.