Cynrog
From Tardis Wiki, the free Doctor Who reference
The Cynrog were reptilian humanoids who hid behind masks. They worshipped the chaos god Balor.
Technology
Cynrog hid behind surgical masks with human eyes on the top. They possesed technology capable of probing the subconcious. Other technology created Nightmare Creatures from the minds of children.
History
In 2006 several Cynrog, led by Priest Commander Peyne came to Yns Du to bring back Balor but failed. (NSA: The Nightmare of Black Island)