Colonel Jake O'Niall is a retired member of the Temple Knights, a highly secretive Saradominist organisation that has protected Gielinor for over 4,000 years. Despite being retired, O'Niall still has contacts within the Temple Knights and often plays small roles in missions. Col. O'Niall plays a large role in the Slug Menace quest. After completing the quest, he can no longer be found in-game.