Alexander Rae "Alec" Baldwin III (born April 3, 1958) is an American actor, comedian and film producer, the oldest and probably the most well-known of the Baldwin brothers, a family in movie and television. His career has brought him Academy Award, Emmy, and Golden Globe nominations. He is noted for having hosted "Saturday Night Live" several times, recently as Donald Trump. He plays the television executive Jack Donaghy in the NBC series "30 Rock". He is also known for the role of Mr. Conductor in "Thomas and the Magic Railroad" (2000).