Krikkitman

The Krikkitmen were androids from the planet Krikkit.

A dust cloud separated them from the rest of the universe, so the Krikkitas thought that they were the only beings in the universe. After learning that they weren't (when a spaceship crashed on their planet), they set out to destroy the universe. They created androids and made ships and sent them off as perfect killing machines. (PROSE: Doctor Who and the Krikkitmen)