Walter Bruce Willis is an American actor, producer, and singer. His career began on the Off-Broadway stage and then in television in the 1980s, most notably as David Addison in Moonlighting (1985–89) and has continued both in television and film since, including comedic, dramatic, and action roles. Probably best known for his role of John McClane in the Die Hard series, which were mostly critical and uniformly financial successes. He has also appeared in over sixty films, including the box office hits, Pulp Fiction (1994), 12 Monkeys (1995), The Fifth Element (1997), Armageddon (1998), The Sixth Sense (1999), Unbreakable (2000), and Sin City (2005).

Motion pictures featuring Willis have grossed US$2.64 billion to 3.05 billion at North American box offices, making him the ninth highest-grossing actor in a leading role and twelfth highest including supporting roles. He is a two-time Emmy Award–winning, Golden Globe Award–winning and four-time Saturn Award–nominated actor. Willis was married to actress Demi Moore and they had three daughters before their divorce in 2000, following thirteen years of marriage. He is married to model Emma Heming.