Favorite Literary Bad Boys

Karen  Tay has an article titled, "Favorite Literary Bad Boys."  #5 on her list  is Mr. Flagg.  Yep, he's  pretty bad!

Tay's List:

• Heathcliff (Wuthering Heights)
• Eric Northman (True Blood)
• Stanley Kowalski (A Streetcar Named Desire)
• Hamlet
• Randall Flagg (The Stand)

About Flagg, Tay writes: "Okay, so he is evil incarnate, but power can be an irresistible aphrodisiac. Randall has only one goal in mind, to unleash hell on a post-apocalyptic earth, and he will do anything to achieve this. Randall also appears in other Stephen King books, including most of the Dark Tower series, but come on, it would be hard to resist being the woman (or man) who tames Satan. I mean, come on, isn't the whole romance novel industry based on this trope?"

QUESTION:
1. Who is your favorite King bad boy (or girl) ?
2. Who  is your favorite non-King literary bad boy (or girl) ?

Here's a helpful listing from villains.wikia.com

MY ANSWERS:
I think the crew from Needful Things were pretty rotten.   Leland Gaunt and Ace Merrill are both evil and their scenes are a lot of fun to read.

I think Ken Follett creates the best bad  guys ever.  All of them are great!  In particular, William Hanley in Pillars of the Earth was bad bad bad.