"1975-09-20Z"^^ . . . "Sera Gamble is an American television writer and producer, best known for her work on The CW series Supernatural."@en . "American television producer and writer" . . . "Sera Gamble"@en . . "Gamble, Sera"@en . "Sera Gamble"@en . "1983-09-20Z"^^ . "1975Z"^^ . "1983Z"^^ . "Sarah Liwnicz"@en .