Flash: The Return of Barry Allen is a classic DC Comics storyline by writer Mark Waid and colorist Matt Hollingsworth (with art by Greg LaRocque and others) that details the shocking return of Barry Allen, the original Flash, years after his death, but as a violent, paranoid speedster who doesn't remember Wally West taking over as the Flash, leading to a conflict between the two heroes and the revelation that the returned Barry is actually the time-traveling villain Professor Zoom (Eobard Thawne) in disguise. The story arc explores Wally's struggle with his mentor's return and the identity of the Flash, culminating in a confrontation where the imposter is revealed
