- 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
A Dixon Hill character employed to kill people by Cyrus Redblock. Leech was one of the people with whom Picard had to contend while playing the Dixon Hill holodeck program.