Goran Visnjic
Goran Višnjić (/ˈvɪʃnjɪtʃ/ VISH-nyich; Croatian: [ˈʋiʃɲitɕ]; born September 9, 1972) is a Croatian actor who has appeared in American and British films and television productions. He is best known for his role as Dr. Luka Kovač in the television series ER. Now credited as Goran Visnjic in his English-language work, he adopted the simplified spelling of his name when he came to the United States in the late 1990s, believing it would be more accessible to American audiences. Visnjic became a U.S. citizen in 2013.