Rodrigo Junqueira Reis Santoro is a Brazilian actor. He is known in Brazil for his appearances on local telenovelas, and internationally for his portrayal of the Persian king Xerxes I in the film 300 (2006) and its sequel 300: Rise of an Empire (2014). Other credits include Brainstorm (2001), Carandiru (2003), Love Actually (2003), Che (2008), I Love You Phillip Morris (2009), and Rio (2011), What to Expect When You’re Expecting (2012). He also appeared on the television series Lost in 2006, portraying the character Paulo, and on HBO's Westworld (2016–2020).