Halcyon Knights

The Halcyon Knights are a race of robot warriors of the empire of the Halcyon worlds.

History
When Coop accidentally destroyed the Flame of Azeroth, their sacred treasure, the emperor issued a challenge to the robots who were competing to claim his throne: bring him the robotwho destroyed the flame to face judgement. They chased after the group (many willing to kill each other or work together for the prize) and Zanzoar brought Megas back first and was named emperor. He tried to execute Megas for destroying the flame, but luckily, Coop broke free and destroyed Zanzoar. The rest of the robots fought him and suddenly, Coop activated Megas' flame hands. This function led the knights to believe that he was part of a fabled legend and Megas was named emperor of the Halcyon worlds. Coop re-ignited the sacred Flame in gratitude, but it started burning everything in its path. When Guyven saw that humanoids were inside Megas (Coop, Kiva, and Jamie), they tried to destroy Megas. Coop decided to escape and fled Halcyon before it blew up.

It's unknown whether they survived or died from the explosion.