- This character was removed from continuity by his author.

Burt at Have your Picture Taken With Nurgle Day, apparently pretending he's some sort of war hero.
Burt the Stealer of One Sock from Each Pair is a Plaguebearer from the Warhammer 40,000 continuum and one of Agent Chliever's three moronic brothers-in-law who were dumped by the Warp into RC 77.
Burt is the wild card of the brothers. He speaks only in insane cackles, and enjoys raiding fridges and acting generally sneaky. He oversees exactly what his name implies, adding yet another annoyance to Winston Chalmers's large list thereof, as he has been a repeated victim of Burt's antics.