Richard Belzer through the years 1978: Richard Belzer during a guest performance on "Saturday Night Live" on March 25, 1978. (NBCU Photo Bank/NBCUniversal via Getty Images, File)
Richard Belzer through the years 1982: Joe Piscopo, David Brenner, Richard Belzer, Pat Benatar, Robin Williams and Rick Newman post for a photo. (Betty Galella/Ron Galella Collection via Getty Images, File)
Richard Belzer through the years 1985: Actors/Comedians Richard Belzer and Robin Williams at the Richard Belzer Radio Show at DIR Studios in New York City on Oct. 16, 1985. (Ebet Roberts/Redferns/Getty Images, File)
Richard Belzer through the years 1985: Richard Belzer poses for a promotional photo for Lifetime's "Hot Properties." (Donna Svennevik/Disney General Entertainment Content via Getty Images, File)
Richard Belzer through the years 1986: Comedian Richard Belzer poses for a portrait in Hollywood, California, in 1986. (Aaron Rapoport/Corbis/Getty Images, File)
Richard Belzer through the years 1987: Dick Gregory, Arsenio Hall and Richard Belzer during HBO's Comic Relief '87 at Universal Ampitheater in Universal City, California. (Ron Galella/Ron Galella Collection via Getty Images, File)
Richard Belzer through the years 1993: (l-r) Ned Beatty as Detective Stan Bolander and Richard Belzer as Detective John Munch on the set of "Homicide: Life on the Street." (NBCU Photo Bank/NBCUniversal via Getty Images)
Richard Belzer through the years 1995: (l-r) Jerry Orbach as Detective Lennie Briscoe, Andre Braugher as Det. Frank Pembleton, Kyle Secor as Det. Tim Bayliss, Richard Belzer as Det. John Munch, Jill Hennessey as Claire Kincaid and Benjamin Bratt as Detective Rey Curtis on the set of "Law & Order" in 1995. (Chris Haston/NBCU Photo Bank/NBCUniversal via Getty Images via Getty Images, File)
Richard Belzer through the years 1995: (l-r) Yaphet Kotto, Jay Leno and Richard Belzer on the set of "Homicide: Life on the Street" in October 1995. (NBCU Photo Bank/NBCUniversal via Getty Images, File)
Richard Belzer through the years 1995: (l-r) Harlee McBride as M.E. Alyssa Dyer and Richard Belzer as Det. John Munch in an episode of "Homicide: Life on the Street" that aired on Dec. 8, 1995 (Michael Ginsburg/NBCUniversal via Getty Images, File)
Richard Belzer through the years 1999: (l-r) Dean Winters as Detective Brian Cassidy, Dann Florek as Captain Donald Cragen, Mariska Hargitay as Detective Olivia Benson, Christopher Meloni as Detective Elliot Stabler, Michelle Hurd as Detective Monique Jefferies and Richard Belzer as Detective John Munch on the set of "Law and Order: Special Victims Unit." (Chris Haston/NBCUniversal via Getty Images, File)
Richard Belzer through the years 2000: Richard Belzer and his wife at the Roast held at the New York Friars Club in honor of Rob Reiner on Oct. 6, 2000. The Roast was presented by Comedy Central. (Nick Elgar/ImageDirect/Getty Images, File)
Richard Belzer through the years 2001: Al Franken and Richard Belzer during The Toyota 2001 Comedy Festival Lineup is Announced at The Friar's Club in New York City. (Sylvain Gaboury/FilmMagic, File)
Richard Belzer through the years 2003: (l-r) Ice-T as Detective Odafin "Fin" Tutuola, Mateo Gomez as Father Castrillon and Richard Belzer as Detective John Munch on the set of "Law & Order: Special Victims Unit" in 2003. (Will Hart/NBCU Photo Bank/NBCUniversal via Getty Images, File)
Richard Belzer through the years 2003: (l-r) Christopher Meloni as Detective Elliot Stabler and Richard Belzer as Detective John Munch on the set of "Law & Order: Special Victims Unit." (Will Hart/NBCU Photo Bank/NBCUniversal via Getty Images, File)
Richard Belzer through the years 2004: (l-r) Richard Belzer as Detective John Munch and Mariska Hargitay as Detective Olivia Benson in an episode of "Law & Order: Special Victims Unit" that aired Nov. 16, 2004. (Will Hart/NBCUniversal via Getty Images, File)
Richard Belzer through the years 2006: (l-r) Chris "Ludacris" Bridges as Darius Parker, Richard Belzer as Detective John Munch and Dann Florek as Captain Donald Cragen on the set of "Law & Order: Special Victims Unit" in 2006. (Will Hart/NBCUniversal via Getty Images, File)
Richard Belzer through the years 2006: "Law & Order: Special Victims Unit" star Richard Belzer plays with a puppy named Munch as he films a public service announcement called "Big Things Happen at Little Shelter" at the Little Shelter Animal Adoption Center in Manhattan in 2006. (Susan Watts/NY Daily News Archive via Getty Images, File)
Richard Belzer through the years 2006: Milena Govich, Dick Wolf, Diane Neal, Richard Belzer and Alana De La Garza pose for a photo during the 46th Monte-Carlo Television Festival on June 30, 2006 in Monte Carlo, Monaco. (Serge Benhamou/Gamma-Rapho via Getty Images, File)
Richard Belzer through the years 2007: Comedian Gilbert Godfried (L) and actor Richard Belzer attend the Friars Club's 50th Anniversary Celebration on Nov. 8, 2007, in New York City. (Steven Henry/Getty Images, File)
Richard Belzer through the years 2007: Harlee McBride, actor Richard Belzer and Meryl Streep attend "A Magical Evening" hosted by The Christopher and Dana Reeve Foundation at The Marriott Marquis on Nov. 12, 2007, in New York City. (L. Busacca/WireImage, File)
Richard Belzer through the years 2008: Actors Robin Williams (L) and Richard Belzer work on set in Bryant Park March 28, 2008 in New York City. (Arnaldo Magnani/Getty Images, File)
Richard Belzer through the years 2009: Actor Larry David and Richard Belzer share a laugh on the New York Jets sideline before the Buffalo Bills vs New York Jets game at Giants Stadium on Oct. 18, 2009, in East Rutherford, New Jersey. (Al Pereira/Michael Ochs Archives/Getty Images, File)
Richard Belzer through the years 2010: Jerry Lewis, Richard Belzer and Rob Schneider attend the after party for the Friars Club roast of Quentin Tarantino at the New York Friars Club on Dec. 1, 2010, in New York City. (Bobby Bank/WireImage, File)
Richard Belzer through the years 2011: Richard Belzer performs at The Stress Factory Comedy Club on June 30, 2011 in New Brunswick, New Jersey. (Bobby Bank/WireImage, File)
Richard Belzer through the years 2012: : (l-r) Ice-T as Detective Odafin 'Fin' Tutuola, Danny Pino as Detective Nick Amaro, Kelli Giddish as Detective Amanda Rollins, Dann Florek as Captain Donald Cragen, executive producer Dick Wolf, Richard Belzer as Detective John Munch, Mariska Hargitay as Detective Olivia Benson and executive producer Warren Leight pose for a photo while celebrating the 300th episode of "Law & Order: Special Victims Unit." (Will Hart/NBCU Photo Bank/NBCUniversal via)
Richard Belzer through the years 2013: Actor/author Richard Belzer signs copies of his book "Hit List" at Book Soup on April 24, 2013 in West Hollywood, California. (Rodrigo Vaz/FilmMagic, File)
Richard Belzer through the years 2016: Jeff Ross, Jerry Lewis, Richard Belzer and Jim Carrey attend the 90th birthday of Jerry Lewis at The Friars Club on April 8, 2016, in New York City. (John Lamparski/WireImage, File)
Richard Belzer through the years 2018: Richard Belzer attends The Paley Center For Media Presents: "Homicide: Life On The Street: A Reunion" at The Paley Center for Media on May 24, 2018 in New York City. (Jamie McCarthy/Getty Images, File)
