Alec Baldwin is an American actor, writer, producer, and comedian. He is the oldest of the four Baldwin brothers, ALEC, Daniel, William, and Stephen. ALEC's sons, ALEC Baldwin IV and ALEC S Baldwin, are also actors. ADAM Baldwin is an American actor best known for his roles in the television series Firefly and Chuck. Alecs Baldwin is ALEC's son and an actor, best known for his role in the movie Mission: Impossible - Rogue Nation.