DADOs are robots that look like humans. They appear in books 7,8, 9, and 10. In The Quillan Games, DADOs are a mechanized security force and the police, who are controlled by Blok. They wield golden stun-guns and enforce the law. In The Pilgrims of Rayne, they first appear in First Earth's flume, and are destroyed by Bobby. Later in the book, Saint Dane brings dados to Ibara, and uses them as an army to try to destroy the village of Rayne. In The Soldiers of Halla, DADOs have become the main security force for the Conclave of Ravinia. They begin to become manufactured at high rates in a factory on Third Earth. DADOs in the form of klees then assault Black Water to destroy the exiles keeping the positive spirit of Solara alive. The DADOs are made by Mark Dimond and Andy Mitchell {Saint Dane in disguise}. DADO stands for Dimond Alpha Digital Organization.