In the Television Critics Association executive session with CBS chairman Nina Tassler, she talked about how Supergirl fits her network’s slate of empowered aspirational women. Speaking with press after the session, she addressed crossover potential with The CW’s Arrow and The Flash and nixed it completely.

“That’s a different network so I think we’re going to keep Supergirl to ourself right now,” Tassler said with a smile.

While I have been championing Brit Marling as my choice for the role of Supergirl, it sounds like they are going to go for an unknown. “We just started [casting],” Tassler said. “When you’ve got a brand like that, it’d be great to have somebody new.”

During the panel, Tassler referred to the pitch that sold her on Supergirl twice. So I asked her what was that beautiful pitch that sold her.

“It’s a wonderful amalgamation of the mythology of the character with kind of a very modern coming of age. She’s a very strong, independent young woman and she’s coming into her own. She’s dealing with family issues. She’s dealing with work issues and it’s a female empowerment story. You look at the strong female characters we have on the air, it really is resonant of that.”

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