Tokra Hazz, later known as the Hidden One, was a Force-sensitive Kel Dor male and a member of the Baran Do Sages, a Force-based organization on the planet Dorin. In 19 BBY, the Jedi Order was almost completely wiped out during Order 66 and the subsequent Great Jedi Purge, causing Hazz to fear that the new Galactic Empire would eventually destroy the Baran Do as well. To avoid that fate, Hazz decided to found the Hidden Ones, a secret sect of the Baran Do that he tasked with preserving the Order's knowledge. He then became the sect's first leader, taking on the title of the Hidden One.