Gestalt up a world-Dominating Evil Overmind (lvl 1-20)

[Lycanthromancer]

So long as you can get along with yourself

This may be harder than it sounds.

Resistance is futile.

[jojolagger]

So long as you can get along with yourself

This may be harder than it sounds.

narcissism.
Problem solved.

[Lycanthromancer]

So long as you can get along with yourself

This may be harder than it sounds.

narcissism.
Problem solved.

Also, autoeroticism.

Definitely hard, but not difficult.

[Tenebrous Apostle]

Running the risk of getting completely out of topic I'd like to suggest a different aproach. The "convert AND die" method as I'd like to call it. A Dread Necro\Sorcerer or cleric can kill and animate any and all creatures he comes across and charm or dominate those he values alive more than dead. Also he can Call demons (and charm or dominate them) and use them as a source for the Extract Gift spell (FC 1) and then the demons can control those the character cannot control directly.

I suppose that a Dread Necro10/Animamage 10 and a Sorcerer 5/mindbender 1/Paragnostic Apostle 5/Fleshwraper 9 (maybe) will cover all posibilities