We will first meet Azie Tesfai‘s Kelly Olsen in Sunday night’s episode of Supergirl which is called “O Brother Where Art Thou?” but fans should expect to see a lot more of her in the future.
Wile the role is a recurring one for the rest of Season 4, the producers let slip that Tesfai will be a series regular for the fifth season of the show. It also sounds as though Kelly and Alex (Chyler Leigh) will get close…
Supergirl Season 5 will likely premiere in Fall 2019, but of course the show has new episodes every week, Sundays at 8PM ET/PT on The CW.

