Sandman

Sandman, also known as Flint Marko, is a supervillain appearing in American comic books published by Marvel Comics. He is a recurring adversary of Spider-Man, and first appeared in “The Amazing Spider-Man” #4 in 1963. Sandman was originally a small-time crook who fell into an experimental particle accelerator, which fused sand particles to his body, giving him the ability to shape-shift and reform his body at will. He uses these powers for criminal gain, becoming one of Spider-Man’s most persistent foes.