Leary started in career as a comedian in the notorious Boston comedy scene of the 1980s, where he hosted his own show at the underground club "Play It Again Sam". He also wrote and appeared on a local comedy series,
Lenny Clarke's Late Show, hosted by his friend
Lenny Clarke and written by Boston comedy writer
Martin Olson. Leary and Clarke both spoke about their early affiliations and influences in the Boston comedy scene in the documentary film
When Standup Stood Out (2006).
Leary first became famous through an
MTV sketch in which he ranted about
R.E.M. Several other commercials for MTV followed, in which Leary would rant at high speeds about a variety of topics. He has released two
records of his
stand-up comedy: No Cure For Cancer (1993) and
Lock 'N Load (1997). In late 2004 he released the
EP Merry F#%$in' Christmas, which included a mix of new music, previously unreleased recordings, and some tracks from
Lock 'N Load.
In 1993, his
sardonic song about the American lower-middle-class male,
Asshole, achieved much notoriety. It was voted #1 in a major
Australian youth radio poll (the
Triple J Hottest 100) as well as reaching #2 in the singles chart in that country. The video also became a staple of
MTV's late-night programming. Due to its explicit and controversial content, however, it received limited airplay on
mainstream American
radio stations. At the 2004 Comics Come Home in Boston, Massachusetts, Denis performed a new version of the song directed at the New York Yankees, and as the song concluded,
Bronson Arroyo walked on stage with the World Series trophy. The song was also used as part of the Holsten Pils series of ads in the UK which Leary was participating in, with adapted lyrics criticizing a drunk driver.
Although he says he is most at home on stage doing stand-up, Leary has appeared as an actor in over 40 movies, including
The Sandlot,
Monument Ave.,
The Match Maker,
The Ref,
Suicide Kings,
Dawg,
Wag the Dog,
Demolition Man,
The Thomas Crown Affair and
Operation Dumbo Drop. He has also starred in two television series,
The Job and
Rescue Me. In addition, Leary has provided voices for characters in animated films such as a saber-toothed tiger named 'Diego' in
Ice Age and its sequel
Ice Age 2 and 'Francis' in
A Bug's Life. He has
produced (and still produces) numerous movies, television shows, and specials through his production company Apostle; these include
Comedy Central's Shorties Watchin' Shorties, the stand-up special
Denis Leary's Merry F#$%in' Christmas, and the movie
Blow. As a
Boston Red Sox fan, he narrated the official
2004 World Series film. In 2006, Leary and
Lenny Clarke appeared on television during a Red Sox telecast and, upon realizing that Red Sox 1st baseman
Kevin Youkilis is Jewish, delivered a criticism of
Mel Gibson's anti-semitic comments. As a
hockey fan, Leary also hosted the
National Hockey League video,
NHL's Greatest Goals
In 2003,
Comedy Central honored Denis Leary in the
Comedy Central Roast of Denis Leary. Friend
Jeff Garlin acted as roastmaster for Denis' roast. Roasters included
Mario Cantone, Dane Cook, Lenny Clarke, Gina Gershon, Conan O'Brien, Jon Stewart, Colin Quinn and
Michael J. Fox.
Leary is now the star and co-creator of FX's
Rescue Me. He plays
Tommy Gavin, a New York City fire fighter dealing with
alcoholism, family dysfunction, and other issues in post-
9/11 New York City. Leary received
Emmy nominations in 2006 and 2007 for Outstanding Lead Actor in a Drama Series for his performance as Tommy Gavin.