Goran Višnjić (ˈvɪʃnjɪtʃ ; ˈʋiʃɲitɕ; born September 9, 1972) is a Croatian American actor who has appeared in American and British films and television productions. He is best known in the United States for his role as Dr. Luka Kovač on the NBC television series ER. He currently plays Garcia Flynn on Timeless, also on NBC. He is the son-in-law of Croatian film director and former head of Croatian Radiotelevision (1991–95), Antun Vrdoljak. 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.