Lonzak was a holodeck character in The Adventures of Captain Proton. He served as the minion and head of defense for Doctor Chaotica, ruler of the cosmos. During one holodeck adventure, he attacked Captain Proton played by Tom Paris, and stated that he had escaped from a den of crocodile's. Paris would later shoot him. Later, when the program was mistaken by photonic lifeforms as being a true representation of the space they entered, he captured the aliens and took them to Doctor Chaotica. At first Chaotica was angry with him for allowing Proton to escape and ordered Satan's Robot to imprison Lonzak for his incompetence, but changed his mind when Lonzak informed Chaotica about his prisoners from the "fifth dimension." Lonzak later became a victim of Queen Arachnia's pheromones and fell in