"Supergirl" Cast and Creators Talk "Flash" Crossover2 of 6
Along the way, however, there'll be plenty of fast-paced fun. The speed gets kicked up a notch when Grant Gustin guest stars as the Flash on the March 28 episode, finding his way to the parallel earth that serves as home to National City. If just seeing Superman's cousin and her fleet-footed fellow superhero from the CW on screen together isn't enough of a treat, executive producer Greg Berlanti promises that the chemistry between Benoist and Gustin is the cherry on top.
"The best part is them," says Berlanti. "I mean, I’d be shocked if they didn’t do other things together in their lifetime. They’re really, really great together."
"The best part is them," says Berlanti. "I mean, I’d be shocked if they didn’t do other things together in their lifetime. They’re really, really great together."