Fans of CW series Arrow, The Flash, and new spin-off Legends of Tomorrow have already been enjoying the multiple crossover cameos and team-ups in that shared universe. Once Supergirl entered the TV line-up, albeit on CBS, fans wondered if the DC heroes could somehow meet.
When our favorite speedster's meddling with time on The Flash opened up breaches to Earth-2, viewers were shown a way that Supergirl could collide with those characters who'd previously never known of her existence. Since news of the crossover episode "Worlds Finest" officially broke, it's been confirmed that Barry (Grant Gustin) will drop in on Kara (Melissa Benoist) from an alternate universe. In exchange for helping him get back to his own realm, The Flash will help Supergirl battle two powerful enemies.
The March 28 episode includes the return of Cat Grant's (Calista Flockhart) enemy Leslie Willis (Brit Morgan), who transformed into electrically-charged Livewire, plus Kara's assistant rival at CatCo, Siobhan Smythe, a.k.a. Silver Banshee (Italia Ricci). As TVLine reports, Supergirl star Benoist was thrilled to get to partner up with The Flash for her character's newest challenge.
"It is the most joyous occasion to have these two superheroes together in the same place, at the same time, working together. They are both so happy with their powers and what they get to do and how they get to help people, that it’s kind of infectious and exciting and upbeat and happy."
It sounds like it won't be just another tough day at the superhero office for Kara, and set photos show stars Benoist and Gustin with big smiles as they film the episode. Executive producer Ali Adler promises the pair have "quite an adorable banter" going and "immediately click," which doesn't make character James (don't call him Jimmy) Olsen very happy. As actor Mehcad Brooks explains, there will be some jealous feelings involved.
"We have this little rivalry, because he’s a superhero, too, and kind of hitting on my girl a little bit. I’m like, ‘Damn you, Barry.'"
Quite honestly, James has always seemed way too mature and adult for Kara, and it's easy to see how the bubbly Barry would have an instant chemistry with her. Gustin's character has always had a way of brightening the scenes in crossover episodes, engaging the often-gloomy Oliver (Stephen Amell) from Arrow in amusingly awkward bromance moments and bringing out the funny side of Team Arrow's Diggle (David Ramsey), who is totally weirded-out over Barry's metahuman abilities. Since Supergirl has a more positive, upbeat overall tone like The Flash, this should be one of the more natural crossover attempts, despite having to transcend time and space to do it.
And if all goes well, we might see Supergirl meeting up with other heroes in the DC universe. Adler describes the collaboration with The Flash "amazing" and assures fans that "The Flash is a busy man, but in success, we’d love to do this again.”
Supergirl returns with 'Falling' tonight, March 14 @8pm on CBS. The Flash returns with ‘Trajectory’ on March 22nd @8pm on The CW. Arrow returns with ‘Broken Hearts' on March 23rd @8pm on The CW. Legends of Tomorrow will return with ‘Marooned’ on March 31st, 2016 at 8pm on The CW.