Flint Marko, also known as the Sandman, is the secondary antagonist of Sam Raimi's Spider-Man film trilogy, serving as the unseen overarching antagonist of Spider-Man and the secondary antagonist of Spider-Man 3. He also returns as a major antagonist in the 2021 Marvel Cinematic Universe film Spider-Man: No Way Home.
He is a professional criminal who accidentally kills Peter Parker's uncle, Benjamin "Ben" Parker. Sandman is seen as a tragic villain because he is portrayed as a decent man who only breaks the law in order to afford the care his cancer-stricken daughter desperately needs. However, his powers and methods in order to do so makes him one of Spider-Man's most dangerous foes. Flint Marko's main weapon of choice was his own body, which he distorted to fit whatever purpose he wanted, although his main firearm was a Colt Python .357 Magnum revolver, which he used in his robberies prior to getting his powers.