TV Line's Matt Mitovich asked Supergirl's executive producer if Lena knows Kara's secret.
Odette Annable is joining the cast of Supergirl as the Season 3 villain.
Floriana Lima will not be a series regular in Supergirl Season 3.
Preview clip for the Supergirl season finale episode "Nevertheless, She Persisted" featuring Superman
Extended preview trailer for the Supergirl season finale "Nevertheless, She Persisted"
Official description for the upcoming third season of The CW's Supergirl
Supergirl season finale "Nevertheless, She Persisted" photos feature Tyler Hoechlin's Superman.
Screen captures from the preview trailer for the Supergirl Season 2 finale "Nevertheless, She Persisted"
CW trailer for the Supergirl Season 2 finale "Nevertheless, She Persisted"
Preview clip and "Inside" video for the Supergirl episode "Resist"