I am playing as possibly my most successful character yet a female nord, thief and master of two handed weapons and light armor. I also got the look of her exactly like I want it this time around. Anyways my question is can any of you give me a list or a few names of evil or just not so good male or female characters that you can marry?

Well, Muiri in my books is evil because
She becomes marry-able after you complete the DB quest for her.

Jenassa. A female Dunmer assassin who sits in the Drunken Huntsman in Whiterun.

Eola

Also Senna, a Priestess of Mara. She seems fine, but when you marry her and have her at your house she keeps saying, "You and I are the only people worth loving in the world," or something like that. It doesn't sound freakishly evil but it definitely gave me pause. It's like it could be romantic but it's sort of... scary.