New 'Flash' Season 3 Trailer, Plus Clarification on 'Rival' Speedster

The Flash Season 3 already raised a multiverse of questions by its big “Flashpoint” twist, not the least of which was another speedster glimpsed on set against Wally West. Most presumed that actor Todd Lasance was behind the “Savitar” role teased as our new big bad, but fresh footage and intel clarifies Barry’s new “Rival.”