The Ellimist, also known as Toomin, was a Ketran male who, through a series of extraordinary circumstances, became almost omnipotent, god-like being. He played a game throughout the universe with a similarly-powerful being known as Crayak, with Crayak aiming to destroy worlds and the Ellimist endeavouring to save them. He frequently interfered in the Animorphs' lives, sending them to possible futures and distant planets, so as to help defeat Crayak. The Ellimist also used the Animorphs' Chee friend, Erek King, in his endeavors. When he appeared to the Animorphs, he tended to take the form of an elderly male humanoid with glowing blue skin, similar to the typical wizard or wiseman archetype.