Card carrying Villians all belong to the local 666, a side division of the League of Evil Intent. They generally strive to make enough money from their various endeavors to afford and awsome lair and many evil minions. How ever most only have a henchman or two. They will try to rob or trick you out of your money and possesions to achieve their evil goals.
Union has their back.
Usually armed...also they might have weapons in those arms.
They tend to be cowardly when by themselves, Taking out their minions will demoralize them and cause them to flee.
When drained of all blood, they die!