- 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
In Tom Paris' holodeck program "The Adventures of Captain Proton" on U.S.S. Voyager, the burly and melodramatic Lonzak was Dr. Chaotica's chief adjutant, executing the evil dictator's orders with utmost loyalty (except when seduced by Queen Arachnia's pheromones). "Halt in the name of Chaotica!" was Lonzak's most common line of dialog in the storyline based on early 20th-century black-and-white science-fiction serials.