The Drakh were a secretive reptilian race in Babylon 5 and allies of the Shadows. The Shadows augmented the Drakh via both engineered organs and various implants and gave thempsi and telekinetic abilities. The Shadows taught and guided them towards the Shadow philosophy of chaos, and the Drakh came to see them as their parents, teachers, and even dark angels.
They also influenced the Centauri people. Many Centauri knew of the name "Drakh" as a legend to frighten children.
In December 2266, the Drakh led an attack on Earth. The Interstellar Alliance stopped the Death Cloud that the Drakh controlled, but were unable to stop a deadly plague from being released into the atmosphere. A cure was found for the plague before all life on Earth was destroyed.