Zygon High Command was the ruling body of the Zygons. Following Operation Double, Jemima and Claudette were the Zygon High Command. They were later violently overthrown and replaced by a radical Zygon faction which sought to usurp humanity, with Bonnie, who took the form of Clara Oswald, taking over the leadership of the High Command. (TV: The Zygon Invasion)

After Bonnie decided not to activate the Osgood Boxes, she ordered the rebels to stand down. (TV: The Zygon Inversion)

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