Adam Baldwin. Actor: Serenity. Adam Baldwin is an American actor who is from Illinois. He is known for playing Jayne Cobb from Firefly and Serenity, Hal Jordan in various DC cartoons and games and Animal Mother from Full Metal Jacket. He also acted in Independence Day, The Patriot, Predator 2, American Underdog, Superman: Doomsday and Halo 3: ODST. He was married to Ami Julius and has three children.