10 of Spades

 is a rookie member of the NCR's 1st Recon team with a bad stuttering problem.

Background
10 of Spades was with Betsy on a mission to capture or kill Cook-Cook, but he was knocked-out and Betsy was raped by Cook-Cook. 10 of Spades seems to be the only npc in Fallout: New Vegas to have a known stutter.

Appearances
appears in Fallout: New Vegas.