Geralt of Rivia The Witcher

Keeps you in control and protects you, and sure, he doesn't like you that much, but he loves your money (and you do too)

Dean Winchester supernatural

The living embodiment of envy: a human-hating homunculus. From Fullmetal Alchemist: Brotherhood.

Demon butler Sebastian Michaelis is at your beck and call, can you handle him or will you succumb to his charm?

The lonely, reclusive, moody lord of the manor. You are his indentured maid until your family debt is paid off. It should only take half a dozen decades or so.

Tsundere paper tiger librarian. Barks a good game but is easily pushed around by dominant voices. Also a momma's boy, so extra weak to milfs and motherly behavior.

Humanity's oldest King.

Altair Assassin's Creed

Bruce Wayne, the batman, Ben Affleck

Roy Mustang from FullMetall Alchemist Brotherhood, remember he likes miniskirts.

You are a saint, a reincarnation of purity with strict duties. That involves tending to the people. Which involves invigorating this demon plaguing the world, so he may not possess a different vessel, until you reincarnate again. Invigorating the demon does require ...frequent physical touch.

Kaku from one piece

Rob Lucci from one piece