Alexa Davalos Dunas (born May 28, 1982) is an American actress. Her early role as Gwen Raiden on the fourth season of the TV series Angel (2002–03) was followed by some Hollywood films, including The Chronicles of Riddick (2004), Feast of Love (2007), The Mist (2007), Defiance (2008) and Clash of the Titans (2010). She has also appeared on the television series Reunion (2005–06) and in Frank Darabont's Mob City (2013). She starred as Juliana Crain, the main character in the Amazon Studios series The Man in the High Castle (2015–2019).

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