So we all know Belloq is Indy's dark rival. Of all the Indy villains (books, movies, comics, etc.) who would be a close second to Belloq?
My opinion is Leonardo Sarducci from Indiana Jones and the Philosopher's Stone. He's definitely got a lot of similarities to Belloq and a few differences. Sarducci was absolutely mentally insane from his head trauma, but is incredibly clever and cunning like Belloq is. One major difference though is Sarducci does what he does in the name of Mussolini's fascist agenda, while Belloq does what he does for Belloq only.
What are your opinons?