- 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
Traditionalist Minister of Internal Security on Malcor III. To prove aliens dangerous, Krola attempted martyrdom using William Riker's phaser. Though only stunned, Krola's effort won support for his cause.