Supergirl/The Flash – Melissa Benoist & Grant Gustin Super Crossover!

Supergirl - Supergirl & Flash & Livewire

Melissa Benoist and Grant Gustin play two of the most likable superheroes in TV history – and with Supergirl and The Flash crossing over networks and universes in a one of a kind adventure on Monday – they had a chance to talk about the Supergirl episode in which they meet.

Follow the jump to see what they had to say.