Ben is a clone of Peter Parker created by the Jackal, and has all of Spider-Man's powers. Being as heroic as his genetic template, he donned a red costume with a blue hoodie and became the superhero Scarlet Spider. To not be confused with Peter in his civilian life, Ben dyed his hair blonde and cut it shorter. His first name is a tribute to Uncle Ben, while his last name, Reilly, is Aunt May's maiden name.
In this animated series, Scarlet Spider resembles the Kaine version from the comics, but is given the name Ben by Aunt May after she learns that he doesn't have another name that he's aware of.