I was wrong. The non-interference directive is the only way. We must stop the slaughter...Even historians fail to learn from history. They repeat the same mistakes.
~ Gill's last words.
John Gill is an antagonist who was introduced on the Star Trek episode "Patterns of Force".
He was portrayed by the late David Brian.
By the mid 23rd century, Gill was one of the leading historians in the United Federation of Planets. Studying the life and times of Jonathan Archer, Gill called him the greatest explorer of the 22nd century, something that was included in Archer's official Starfleet biography.
Gill worked as a Professor at Starfleet Academy. One of his students was future Enterprise Captain James T. Kirk. Gill at one point had studied the life and work of Jonathan Archer , and described Archer as the greatest explorer of the 22nd century.
In the 2260s Gill was sent to Ekos as a cultural observer for the Federation. Arriving there Gill saw the planet in a state of anarchy, and decided to violate the Prime Directive. Drawing on his knowledge of Earth history, Gill decided to implement a Nazi state on Ekos, feeling that such a state without the racial or religious persecution would be beneficial to Ekos. Following the establishment of the state Gill became the Ekosian Führer.
At first Gill's plans worked. However he was drugged by his Deputy Führer Melakon, who then took actual power. The Nazi state on Ekos started to head down the same dark path that the original Nazis on Earth had, persecuting their neighbors the Zeon. The Ekosian SS became the brutal enforcers of Melakon's will.
Losing contact with Gill, Starfleet dispatched Captain Kirk and the Enterprise to Ekos. Kirk and Spock soon discovered what had happened. Confronting Gill, they realized he was heavily drugged, and by then just a powerless figurehead.
Kirk was able to bring Gill back to consciousness. Gill transmitted a message to all of Ekos ordering the military to stand down before they began their genocidal attack on Zeon. Apologizing to the Zeon, Gill denounced Melakon as a traitor. Grabbing a machine gun, Melakon shot Gill and was in turn killed by the Zeon Isak.
Gill died a few minutes later in Kirk's arms. Before dying he admitted that he had been wrong to violate the Prime Directive, and that it had been a mistake on his part to implement a Nazi state on Ekos.