Dixon's thug

Dixon's thugs, just called "thug" in-game, are two unused non-player characters still present in the game files of Fallout: New Vegas.

Background
Dixon's thugs are two bodyguards hired to protect Dixon.

Quests
Information from the GECK (including the editor ID's of VFSHighTimesDealerThug 1 and 2) suggest they would play some part in the quest High Times.

Appearances
Dixon's thugs were added during the development stages of Fallout: New Vegas, but were unused in the final retail release of the game.