Colmillo

 is a dog living in Gibson Scrap Yard. It belongs to Old Lady Gibson, apparently warding the place and/or serving as a pet.

Behind the Scenes
'Colmillo' is Spanish for 'fang'.

Appearances
appears in Fallout: New Vegas.

Bugs
Sometimes after going through the back door at Helios One, him, Audaz, Basura, and 3 mole rats will attack you.