Lord Crump:

What a pathetic excuse for an underling! No respect for his superior and not nearly snivelling enough! But what he lacks in general demeanour he makes up for in abject failure.
The X-Nauts have gained a bad reputation with the Koopa Troop but thankfully Crump was on their side and readily available to botch up any sideways scheme those sinister spacemen could cook up.
There is somewhat of a dispute among the Koopa ranks about whether that frill is a beard or part of his cape but one thing's for sure: Whatever it is it probably smells and has bits of food stuck in it.

(Bio by Professor Fandango)