William Joseph `Billy` Baldwin (born February 21, 1963) is an American actor, producer, and writer, known for his starring roles in such films as Flatliners (1990), Backdraft (1991), Sliver (1993), Fair Game (1995), Virus (1999), Double Bang (2001), as Johnny 13 in Danny Phantom (2004–2007), Art Heist (2004), The Squid and the Whale (2005), as Senator Patrick Darling on the ABC drama Dirty Sexy Money (2007–2009), Justice League: Crisis on Two Earths (2010), and was a regular guest on Gossip Girl as William van der Woodsen and Parenthood as Gordon Flint. He also starred as lead detective Brian Albert in the Lifetime Original Movie The Craigslist Killer.He is brother to actors Alec Baldwin, Stephen Baldwin, and Daniel Baldwin. He is married to singer Chynna Phillips (Wilson Phillips) and they have 3 children. Description above from the Wikipedia article William Baldwin, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Sliver
Born on the Fourth of July
Forgetting Sarah Marshall
Be My Valentine
Justice League: Crisis on Two Earths
Backdraft
The Squid and the Whale
Flatliners
Candy Land
Humble Pie
Dino Time