Tartar (also known as the Telephone for the majority of the game) is the overarching antagonist in the Splatoon videogame series, appearing as the main antagonist of Splatoon 2: Octo Expansion. He is an ancient AI created to pass down humanity's knowledge, who, upon becoming disappointed in both the Inklings and Octolings, seeks to wipe out all the planet's life to remake it in his own image.