Claim: Rodrigo Santoro starred in Brainstorm.

Rodrigo Junqueira dos Reis Santoro -LRB- -LSB- ʁoˈdɾiɡu sɐ̃ˈtoɾu -RSB- ; born August 22 , 1975 -RRB- is a Brazilian actor . He has appeared in many successful movies , including Brainstorm -LRB- 2001 -RRB- , Carandiru -LRB- 2003 -RRB- , Love Actually -LRB- 2003 -RRB- , Che -LRB- 2008 -RRB- , I Love You Phillip Morris -LRB- 2009 -RRB- , and Rio -LRB- 2011 -RRB- . He is perhaps most famous for his portrayal of Xerxes in the movie 300 -LRB- 2006 -RRB- and its sequel 300 : Rise of an Empire -LRB- 2014 -RRB- . He was a series regular on the television series Lost portraying the character Paulo , and plays Hector Escaton in HBO 's Westworld -LRB- 2016 -RRB- .