Viggo Peter Mortensen Jr. /ˈviːɡoʊ ˈmɔːrtənsən/ (Danish: [viɡ̊o ˈmɒːdnsn]; born October 20, 1958) is an American actor. He made his film debut in Peter Weir's 1985 thriller Witness, and subsequently appeared in many notable films of subsequent years, including The Indian Runner (1991), Carlito's Way (1993), Crimson Tide (1995), Daylight (1996), The Portrait of a Lady (1996), G.