Aimed at those running superhero games with the Savage Worlds ruleset, here is a splendid resource consisting of a selection of supervillians all of whose evil plots are in some way connected with the occult.
As well as a full statblock and a detailed background writeup that tells you what that villain can do, how he came by his powers and his general attitude, each comes with some ideas that could be developed into full adventures involving him. (The background write-up often suggests more, but you have to do more development as to how to use the ideas spawned by them.) There is also a neat section on how to involve that supervillain in your campaign, if you fancy using him as more than a one-off opponent.
These villains are all pretty nasty, but in reading their backstories, many are pathetic even tragic... whilst their crimes are terrible so are the paths whereby they became what they are today. Are any redeemable? That is for the characters to find out. Some are, if they pay attention, seeking to be rescued from what they have become.
It's a good selection and used wisely should keep your superheroes busy for quite some time!