The New Avengers
Real name: William Baker, a.k.a. Flint Marko
Occupation: Professional criminal, former adventurer
Group affiliation: None; formerly the Sinister Six, Wild Pack, Avengers and Frightful Four
Base of operations: Mobile
First appearance: Amazing Spider-Man (Vol. 1) #4 (1963)
Height: 6 ft. 1 in.
Weight: 240 lbs. in human form, 450 lbs. at maximum density and normal mass
Powers: Sandman possesses the ability to transform his body into a malleable, sand-like substance that can be hardened, dispersed or shaped according to his will. Also, he is able to increase his size and mass to an unknown extent by incorporating nearby sand into his form.