Colony Wikia

The Demis, or Los Demonios, are an alien species who are at war with The Hosts.[1] In the episode Disposable Heroes, they confront and kill two Outliers during a trial exercise. In the next episode, Bonzo, Everett Kynes sees the footage of the Demi attacking the Outliers. Later, he came to speak with a Demi whom he is holding as either captive or liaison capacity. They also destroyed The Factory to prevent the Hosts from building their defense weapons.


Before the Arrival, the Demis had attacked The Hosts' homeworld and driven them from their planet, forcing the Hosts to flee to Earth, which led to the occupation of Earth.

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  • The Demis resemble the traditional alien "Greys" often seen in media, but differ slightly in being taller with smaller heads.