Antler

 is the deity which the nightkin believe in. They believe he/she gives them their orders, although Antler is really just a brahmin skull.

Origin
As you can infer from dialougue with Davison, Antler is actually just a brahmin skull Davison picked up while his squad was wandering the wasteland. Since Nightkin suffer from schizophernia due to prolonged use of the stealth boy they thought it was actually a god speaking to them.

Appearances
appears only in Fallout: New Vegas.