Goran Višnjić (Croatian: [ɡǒran ʋîʃɲitɕ] VISH-nyich; born 9 September 1972) is a Croatian-American actor who has appeared in American and British films and television productions. He is best known for his roles as Dr. Luka Kovač in ER and Garcia Flynn in Timeless, both NBC television series. For ER, he and the cast were nominated for two Screen Actors Guild Awards. He is the son-in-law of Croatian film director and former head of Croatian Radiotelevision (1991–95), Antun Vrdoljak.
Source : Wikipedia