'Mr. King is the Chee acting as the father of Erek King. Like all Chee, he is very long-lived, having been on Earth since the Egyptian era, and apparently acted as a doctor in the sixteenth century. Although the Animorphs tend to work with Erek as their Chee contact when exchanging information, Mr. King once helped Ax hack into an Andalite ship's computer to find out information about four other Andalites who had recently arrived on Earth.