Zeus is the king of the gods in Greek mythology. He appeared as a member of the Council of Nine in the "Imaginationland" trilogy. He gets killed when Imaginationland is blown up by a nuclear missile, but gets revived when Butters imagines Imaginationland, as it was before the evil creatures burst out of the barrier.
Zeus has white hair, along with a white goatee. He wears the standard, white, Greek toga, and golden wrist bands.
Despite being in the Council of Nine, he seems cowardice, wanting to run, instead of fight, from the evil imaginary characters in the "Imaginationland" trilogy. He had to be coerced into fighting by the other Council of Nine members.