Supergirl's Katie McGrath Explores Lena and Kara's 'Difficult' Dynamic in Season 3 -- Watch an Exclusive Clip

Lena Luthor is “slowly trying to take over National City” in Supergirl‘s third season, actress Katie McGrath tells TVLine -- and purchasing CatCo was only the beginning. “I remember trying to explain it to my mom,” McGrath recalls. “I said, ‘It’s like she already owns Facebook and General Motors and now she just bought Coca-Cola.’ […]