Néstor Gastón Carbonell (Spanish pronunciation: [ˈnestoɾ ɣasˈtoŋ kaɾβoˈneʎ]; born December 1, 1967) is an American actor, director, and screenwriter. He came to prominence for his role as Luis Rivera in the NBC sitcom Suddenly Susan. He is known for his roles as Richard Alpert in the ABC drama series Lost, Sheriff Alex Romero in the A&E drama...