Gene Roddenberry was a Starfleet officer in the 24th century. In the 2360s and 2370s, he was the Chief of Staff for the Federation Starfleet. (TNG episodes: "Encounter at Farpoint", "The Wounded", "Redemption"; DS9 episodes: "The Search", "Valiant", "The Dogs of War"; TNG movie: First Contact; VOY episodes: "Caretaker", "Message in a Bottle")