On the CW's Supernatural, Jack Kline (played by Alexander Calvert) is a nephilim born after his father, Lucifer, impregnates his human mother, Kelly Kline.  Jack is new to the world, but possesses terrifying power, which can make it difficult for him to navigate his life as a hunter with Sam, Dean, and Castiel.  For an extra detail, you may be able to get gold-colored contacts from your eye doctor to mimic Jack's golden irises as a result of his status as the most powerful nephilim.

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