- Source of Wealth: Film and Television
- Age: 56
- Birth Place: Massapequa, New York, U.S.
- Height: 6′ 2″ (1.87 m)
- Weight: 80 kg (176 lbs)
- Marital Status: Married (Chynna Phillips)
- Full Name: William Joseph Baldwin
- Nationality: American
- Date of Birth: February 21, 1963
- Ethnicity: English, Irish, Scottish, French-Canadian and German
- Occupation: Actor, Producer and Writer
- Education: Berner Middle School and Binghamton University
- Children: 3 (Vance, Jamison and Brooke)
American writer, producer, and actor, Billy Baldwin is known for his roles in films such as Flatliners, Virus, Double Gang, Fair Game, Danny Phantom, The Squid, and the Whale, Art Heist and Forgetting Sarah Marshall. He also appeared in several TV programs including ABC’s Dirty Sexy Money, Justice League: Crisis on Two Earths, Parenthood and Gossip Girl where he is a current regular guest.
Before his successful film and TV career, Billy Baldwin started out as a model for Calvin Klein. His acting career started in the late 1980s when he was given a starring role in The Preppie Murder as Robert Chambers. Billy Baldwin is currently married to Chynna Phillips with whom he has three children named Jameson, Vance, and Brooke.