Can the cast of Supergirl tell the difference between a Kara quote and a Disney Princess line? We put Melissa Benoist (Kara/Supergirl), Chyler Leigh (Alex), Katie McGrath (Lena Luthor), David Harewood (J'onn J'onzz), Jesse Rath (Brainy), Staz Nair (William), Andrea Brooks (Eve), Nicole Maines (Nia Nal), Julie Gonzalo (Andrea), Azie Tesfai (Kelly) and Elizabeth Tulloch (Lois Lane) to the test. Supergirl airs on Sundays at 9/8c on the CW.

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