'The Flash' and 'Supergirl' Season 1: EPs confirm crossover episode 'World's Finest' airing March 28
EPs Kreisberg and Berlanti confirmed that 'Supergirl' will be having a crossover episode with 'The Flash'. That said, Grant Gustin will be guest starring in the upcoming episode and 'Chasing Life' actress Italia Ricci joins cast as Silver Banshee.