Back in the mid-'90s I thought Courtney Love was pretty hot, despite being kind of crazy and kind of skanky and generally disreputable.
Then she went and got too crazy/skanky/disreputable for me, and now I find her off-putting.
Oh, man…me some too! (With Moonbeam, “sloppy seconds” is a given.)
Miz McSwine takes second place only to Fah Lo See, Dr. Fu Manchu’s sexy, white-man-and-torture obsessed daughter, played respectively by Myrna Loy and Boris Karloff in The Mask of Fu Manchu (1932).
Now, I submit that Riddick is not really even a bad guy, let alone “really revolting.” He’s one of those “misunderstood” bad guys, just trying to look out for himself in a world gone mad. I think someone mentioned in the Chronicles of Riddick thread that he only ever kills bad guys, not women or children. I was going to mention in that thread that Vin Diesel seems to be making a career of “good bad guys,” who may be in trouble with the law but whom we don’t want to see go to jail, and in which the real hero helps him escape (see Boiler Room, The Fast and the Furious, Pitch Black), or he decides to work within the system (XXX). But then, you know, the moment passed.
Not that I’m making a study or him or anything. 
My own personal nominee would be an actor, not any particular character he’s played: David Thewlis, who keeps playing child molesters and other violent, untrustworthy sorts. He fascinates me and I don’t know why.
Hey, I love Riddick more than anyone can say or even fathom, but in the first five minutes of Chronicles of Riddick he killed three men without a blink of an eye! And let’s not forget the teacup murder.
In the beginning of Pitch Black he’s on his way to slam city for LIFE for multiple murder. I say that qualifies as a bad guy
And he turns me right the hell on.
Amen. 
Still, is it bad that I found myself rather attracted to Snape before I saw any of the movies?
Frohike. His first name is Melvin. I don’t think he bathes.
He’s not revolting, but he’s bad: Jango Fett. He’s just . . . nifty.
Hillary Clinton
The Leash Girl
Fran Dresher as The Nanny
And hottest of all… Martha Stewart
Don’t make the n00bs hunt through the archives to find her, jeez. Here.
I can’t believe I forgot to mention Lucius Malfoy (as played by Jason Isaacs? Is that his name). DAMN, he was hot.
And Grand Admiral Thrawn, from the Star Wars books. Blue skin, black hair, piercing red eyes. (How would Alan Rickman look with blue skin?)
I can dig this.
Clancy Brown’s character in the first “Highlander.” I have no explanation other than…“It was Clancy Brown.”
Gary Oldman as Dracula.
And yes, Guinastasia, you are correct: it is Jason Isaacs. And he is hot. 
Jeremy Irons. WOW … that man is beyond HOT!! and I love every movie I’ve ever seen him in, they are just so, what’s the word???, intensely sexy.
Man he’s got whatever it is that turns me on
Woody Harrelson is another one of my fantasy men. I saw and loved “King Pin”, one of my favorite all time favorite films - and all cause of Woody. He just drips sex. You can just tell he knows exactly what to do to ya