Morok

Moroks were a humanoid race that founded the Morok Empire, which included the Space Museum on Xeros. The Doctor and his companions aided the Xerons in their revolution against the Moroks. (DW: The Space Museum)

Mortimus was once an adviser to the Moroks. (NA: No Future)

The Morok Empire collapsed in the 30th century thanks to human intervention. (NA: The Death of Art)