Official CW description with spoilers for the Supergirl episode "Ahimsa"
Supergirl is introducing a sister for James Olsen, to be played by Azie Tesfai in Season 4.
Supergirl Executive Producer Robert Rovner discusses the political overtones in Season 4 of the series.
Supergirl EP Robert Rovner teases the coming of Lex Luthor to Supergirl.
The CW has announced that Superman's enemy Lex Luthor will be coming to Supergirl later in Season 4.
The Kent House from Smallville appears to be in this year's Elseworlds crossover involving Supergirl, The Flash, and Arrow.
Official CW preview images for the Supergirl episode "Fallout" airing Oct. 21 on The CW
Melissa Benoist has shared a picture of herself, Tyler Hoechlin, and Elizabeth Tulloch that appears to be on the Kent…
Tyler Hoechlin's Superman wears a black costume in this year's Arrowverse crossover on The CW.
There was a hidden Star Wars connection in the Supergirl season premiere.