Four more that may be useful
for more 'temp' or 'gray' villains
Injury: The character has been injured and is trying to defend himself, or has his ability to control or direct his powers impaired. This Injury could be emotional or physical: if in the past this is instead Revenge! It could be due to what was injured (he is pissed and so is less cautious with his powers), he has been blinded (semi-permanently) and the villain may well have left the scene but still thinks he is fighting. Defensive powers (like a destructive aura) may be locked on and he could be critically injured. Also Killbots.
Side Effect: His powers have a dark side-effect, Perhaps he blasts beams oh hellfire, but every time he destroys something with them he gets a rush of euphoria, which can be addictive: perhaps this luck controller must offload his bad luck on to someone else; Perhaps his powers force him to mentally like with the dark powers beyond the stars, and this slowly drives him to madness. Perhaps he made a deal with the devil, and the favor was called in. In this case the power has an effect which all but mandates villainy, without use of the power being villainy by default (see mandated).
Fallout: In this case the character may not know/believe/care that his or her presence or powers tend to have... fallout: this fallout ranges to radioactive fallout, to diving people insane, to overly large amounts of collateral damage. In this case the effect is not part of using the power per say, but a result of using it. In addition Fallout does not necessarily always occur, and always targets someone else.
Mentally Impaired: This is both similar and dissimilar to insanity: compare. This is there for those with 'rage powers,' for the "autistic" (note not all kids who are autistic are stupid, but more accurate terms are considered impolite) guy with lazer eyes, and for the mind controlled or delusional 'hero'. In this case due to decreased mental faculties this character has become dangerous and so a villain. This is also meant to be the category for things like giant animals (or monsters) who do not feast primarily on people (and so Mandated).
Servitude: In this case, it is similar to Mandated however, it is not because the character was created that way (or created in service to evil), but because he or she voluntarily (or with some limited volition in excess of Mandated and Mentally Impaired) chose to serve someone and that person is against you. Examples include but are not limited to: Government Spec-Ops (If they are sent to take you down, that is what they have to do, whether for more benign reasons, or less it is the same.), Honor Before Reason 'knights' who have sworn service to the villain (before he was a villain), The police (in many cases), 'Shadow-knights' (serving an evil being entirely voluntarily), and anyone else who is a villain because it is his or her job or duty.
Edit: incorrect number
Oblivious Man Strikes Again!
"Sometimes I think you are more useful dead than alive!" -A Friend regarding one of my characters.