I think I've got another one; You know how Slenderman's typical description is a tall, thin man with no hair in a black suit with a red tie, an infathomably blurred face, (your own mind blocking it or something) and, I've heard, tentacle things coming out of his back? That sounds a LOT like Agent 47's description. Minus the face blur (although that would explain why no one seems to notice one of their staff is suddenly a different person...) and tentacles, I think 47's only different feature is a barcode on the back of his head. This makes me wonder what the back of Slenderman's head supposedly looks like. Apart from that, they both walk the earth virtually undetected until they meet their victim, take them out, and vanish, right? Weird.
Also, not creepy, but is it odd that the term "Lovecraftian," sounding like a word for valentine's day, is used (rightly so) to describe mind-splintering horrors?