Sandman (Marvel Comics)

Sandman (a.k.a. Flint Marko; born William Baker) is a fictional character in the Marvel Comics universe, traditionally an adversary of Spider-Man. Created by writer Stan Lee and artist Steve Ditko, he first appeared in The Amazing Spider-Man #4 (Sept. 1963). His body has been changed into sand, which he can control completely. He may also absorb nearby sand and reconstitute it into his body.