Croup and
Vandemar are the
antagonistic assassin team from
Neil Gaiman's
Neverwhere. They are considered amongst
London Below to be the greatest
assassins available, and at a
high price as well. It is said that
Hunter is the only
bodyguard capable of matching their
abilities.
Croup does most of the talking, although occasionally both Croup and Vandemar speak, finishing each others sentences, almost as if they can read each others minds.
Vandemar seems to be the most violent, and does most of the killing, however Croup displays his prowess at the deadly arts occasionally, and it is clear that his skill is present even if it goes unused.