Bill Clark is a former New York Police Department first grade detective and an award-winning television writer and producer. He was a veteran NYPD Detective First Grade before joining David Milch and Steven Bochco's NYPD Blue in the first season as technical consultant, drawing on his twenty-five years experience with New York undercover and homicide units to ensure that the series accurately and realistically portrayed the work of New York City detectives. He went on to win two Emmy Awards, and was also honored with a Writers Guild of America Award, a Peabody Award and two Humanitas Prize.^[1]

Born in St. John's, Newfoundland, Clark grew up in Brooklyn, New York, in an area now known as Park Slope.

Clark joined the New York City Police Department in 1969. He worked a special undercover assignment for two years before entering the Police Academy. In 1972 he earned his gold detective shield. On December 31, 1994, Clark retired from the Queens Homicide Detective Squad as a First Grade Detective.

One of Clark's specialties on the force was interrogation. He worked on a number of headline cases ranging from the Son of Sam^[2] to crackdowns against the Gambino crime family.^[3]

His first assignment—even before he attended the Police Academy—was to infiltrate the Young Patriots Organization, an organization of white radicals who, he soon discovered, were planning to bomb several New York City landmarks.^[4]

• NYPD Blue (Writer, executive producer, technical advisor) (1993–2005)
• Brooklyn South (Supervising producer) (1997)
• Blind Justice (Executive producer) (2005)
• John from Cincinnati (Consulting producer) (2007)

He has had featured acting roles on L.A. Law, John from Cincinnati, Fallen, CSI: Miami and NYPD Blue.

Clark appeared on Charlie Rose in 1995 along with David Milch.

Activision consulted with Clark on their 2005 release True Crime: New York City.

He co-authored, along with NYPD Blue co-creator and executive producer David Milch, True Blue: The Real Stories Behind NYPD Blue (1995).^[5]