- 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
Malon serving on a toxic waste freighter under Fesek in 2375. While trying to repair theta radiation leakage, preventing a calamitous explosion, Pelk was killed by the Vihaar 'creature.'