Surprising as it may sound, the evil laugh can often be the most disarming tool in the evil villain’s arsenal. It can inspire minions to fanatical levels of devotion and also demoralize handsome enemy agents so that they accept the futility of their feeble attempts to thwart your plans. The proper evil laugh has many parts:

• Laugh: Begin with an innocent chuckle, as if savoring a private joke. As the inevitability of victory becomes clear to you, build into a maniacal cackle.
• Pose: During the cackle, lift the head up and gaze into the skies, as if challenging the very gods above. Avoid eye contact with insignificant mortals near you.
• Lighting: An eerie glow from beneath will make you appear more terrifying. Possible sources: Flashlight, table lamp, nuclear reactor.
• Special Effects: If you can manage to shoot lightning bolts from your cheeks and eyebrows, do it. Nobody will mess with you at that point, guaranteed.

cute kitty, by daniellekellogg, licensed under CC BY-SA 2.0