Richard Jay Belzer was an American actor, comedian, and author. He was best known for his role as BPD Detective, NYPD Detective/sergeant and investigator John Munch, whom he portrayed for 23 years in the NBC police drama series Homicide: Life on the Street, Law & Order: Special Victims Unit and several guest appearances on other series.

Belzer authored four books, the last two of which were a crime fiction series co-written with Michael Black that featured Belzer as the mystery-solving protagonist. I’m Not a Cop, the first of the two, was published in 2008, followed by the sequel, I’m Not a Psychic, in 2009. Belzer penned UFOs, JFK and Elvis: Conspiracies You Don’t Have to Be Crazy to Believe in 2000, and co-authored How to Be a Standup Comic in 1988 with “Borat” director and writer, Larry Charles, and Catch a Rising Star owner Rick Newman.