Former Arrowverse star Grant Gustin reveals to a fan that there's only one role in James Gunn and Peter Safran's DC Universe ...

Amusingly enough, Gustin sounded somewhat sheepish when replying, presumably because he knows it was the answer that everyone ...

Fan Expo Denver will host a "Star Trek" captain, an Oscar-winning actor, a WWE champion, and "Twilight Saga" cast members ...