Villains who partake in the criminal act of blackmail, demanding money from someone in exchange for not revealing information about the victim. Due to the nature of blackmail, many of these villains are manipulative and cunning.

Blackmailers are different from Deal Makers and Extortionists for subtle reasons. Blackmail follows the "I scratch your back, you scratch mine...or else" scenario and can involve the exploitation of a person's feelings. Deal Makers are usually less underhanded than Blackmailers, as they generally seem on the same page as the person with whom they make deals, whereas Extortionists tend to be worse because they utilize abuse and violence to get their way while offering a lesser amount to their victims.

Also by the very nature of blackmail victims are unable (or unwilling) to go to authorities or even potential allies for help as this would expose their misdeed, this puts blackmailers in an extremely high position of authority over their victims (who may often be a minor villain / criminal themselves).