Alexa Davalos Dunas is an American actress. Her early role as Gwen Raiden on the fourth season of the TV series Angel (2002–03) was followed by other television roles and some Hollywood films, including The Chronicles of Riddick (2004) and Defiance (2008). In the late 2010s, she starred as Juliana Crain, the main character in the Amazon Studios series The Man in the High Castle. She also played Special Agent Kristin Gaines in the CBS drama series FBI: Most Wanted (2021–2023).

The Chronicles of Riddick is a 2004 American science fiction action film written and directed by David Twohy. It is a sequel to Pitch Black (2000) and the second installment in the Riddick film series. Vin Diesel reprises his role as Richard B. Riddick and acts as producer, alongside Thandiwe Newton, Karl Urban, Alexa Davalos, Colm Feore, and Keith David. It follows the adventures of Riddick as he attempts to elude capture and face an invading empire.