"At school, Lenny Fiasco always got teased for erasing the mistakes he made in his notes and homework. In bitterness, he became The Eraser™, a super-villain with the ability to remove all clues from a crime scene. For a modest fee, other criminals can hire him to erase the evidence they leave behind, so that not even a Dark Knight Detective can trace their tracks!" —LEGO.com
The Eraser is a supervillain who is hired by assorted criminals to eliminate evidence from crime scenes. He turns out to be Bruce Wayne's old schoolmate Lenny Fiasco.