Maahox

"I am Maahox, master of experimental occult sciences, and exile from Calum. These titles are related."

- Maahox

Maahox is the mad scientist responsible for Lotor's return, as well as the advanced robeasts that have come to challenge Voltron of late. He is originally from Calum, though he is now exiled.

GNE
He developed a technology using a mysterious mineral-haggarium ...