Marvin Jones III plays Tombstone in Spider-Man: Brand New Day.
Tombstone is the criminal alias of Lonnie Lincoln, a powerful underworld figure from Marvel Comics. In the film, he is one of several Spider-Man antagonists used to create a more grounded crime story in New York City.
The filmmakers wanted Peter to face multiple lesser-known or street-level villains rather than another single threat capable of destroying the world. Tombstone appears alongside characters including Boomerang, Tarantula, Ramrod, Scorpion, and the Hand ninjas.
Boomerang, Tarantula, and Ramrod are all named as villains in the film, which makes them especially plausible alternatives. However, the casting information identifies Marvin Jones III with Tombstone. The question asks for the character, not the actor, so the canonical answer is Tombstone.