Billy Gardell was born on August 20, 1969 in Pittsburgh, Pennsylvania, USA as William R. Gardell. He is an actor and producer, known for Mike & Molly (2010), Bad Santa (2003) and You, Me and Dupree (2006). He is married to Patty. They have one child.
| Movie | Must See TV: A Tribute to James Burrows | Unknown | 2016 |
| Movie | Going Under | Unknown | 2016 |
| Series | The Meredith Vieira Show | Unknown | 2016-03-05 |
| Series | Chopped Junior | Unknown | 2016 |
| Movie | Undrafted | Umpire Haze | 2016-03-05 |
| Series | CBS This Morning | Unknown | 2015 |
| Movie | Dancer and the Dame | Unknown | 2015 |
| Series | Monopoly Millionaires' Club | Unknown | 2015 |
| Series | The Nightly Show with Larry Wilmore | Unknown | 2015-01-19 |
| Series | Celebrity Name Game | Unknown | 2014 |
| Movie | Jersey Boys | Unknown | 2014-06-20 |
| Series | Stand Up and Deliver | Unknown | 2014 |
| Movie | Billy Gardell Presents Road Dogs: Chicago | Unknown | 2014 |
| Movie | Billy Gardell Presents Road Dogs: Las Vegas | Unknown | 2013 |
| Movie | Billy Gardell Presents Road Dogs | Unknown | 2013 |
| Series | The NFL Today | Unknown | 2013 |
| Movie | If These Walls Could Talk: The Story of the Punchline | Unknown | 2013 |
| Series | Gotham Comedy Live | Unknown | 2013 |
| Series | Live with Kelly and Michael | Unknown | 2013 |
| Series | Trip Flip | Unknown | 2013 |
| Series | The Queen Latifah Show | Unknown | 2013-09-16 |
| Movie | 2012 Primetime Creative Arts Emmys | Himself - Presenter | 2012-09-22 |
| Series | Sullivan & Son | Unknown | 2012-07-19 |
| Series | The Chew | Unknown | 2011-09-26 |
| Movie | Billy Gardell: Halftime | Unknown | 2011 |
| Series | Ice Age: A Mammoth Christmas | Santa | 2011-11-24 |
| Series | Mike & Molly | Unknown | 2010-09-20 |
| Series | The Talk | Unknown | 2010-10-18 |
| Series | Conan | Unknown | 2010-11-08 |
| Series | The Very Funny Show | Unknown | 2009 |
| Series | Late Night with Jimmy Fallon | Unknown | 2009-03-02 |
| Series | Burning Hollywood | Unknown | 2009 |
| Movie | The Deported | Unknown | 2009 |
| Movie | Have Tig at Your Party | Unknown | 2008 |
| Series | Desperate Housewives | Unknown | 2008 |
| Series | Rachael Ray | Unknown | 2007-05-31 |
| Movie | Dragon Wars: D-War | Unknown | 2007 |
| Series | Chelsea Lately | Unknown | 2007-07-01 |
| Series | Comics Unleashed | Unknown | 2007 |
| Movie | Heckler | Unknown | 2007-11-04 |
| Series | Phineas and Ferb | Unknown | 2007-08-17 |
| Movie | Alive N' Kickin' | Unknown | 2007 |
| Movie | You, Me and Dupree | Unknown | 2006-07-14 |
| Series | Heist | Billy O'Brien | 2006-03-22 |
| Movie | Room 6 | Unknown | 2006-06-13 |
| Series | Unscripted | Unknown | 2005-01-09 |
| Series | The Late Late Show with Craig Ferguson | Unknown | 2005-01-03 |
| Series | My Name Is Earl | Unknown | 2005-09-20 |
| Series | Bones | Unknown | 2005-09-13 |
| Series | Quintuplets | Unknown | 2004 |
| Series | Comedy Central Presents | Unknown | 2004 |
| Series | Tavis Smiley | Unknown | 2004-01-05 |
| Movie | Bad Santa | Unknown | 2003 |
| Series | Gary the Rat | Unknown | 2003 |
| Series | Lucky | Vincent Sticcarelli / ... | 2003-04-08 |
| Series | Las Vegas | Unknown | 2003-09-22 |
| Series | Pyramid | Unknown | 2002-09-16 |
| Series | Monk | Unknown | 2002-07-12 |
| Movie | Avenging Angelo | Unknown | 2002 |
| Series | Kristin | Unknown | 2001 |
| Series | Cover Me: Based on the True Life of an FBI Family | Unknown | 2000-03-05 |
| Series | CSI: Crime Scene Investigation | Unknown | 2000-10-06 |
| Series | Yes, Dear | Unknown | 2000-10-02 |
| Movie | Gary the Rat | Unknown | 2000 |
| Series | It's Like, You Know... | Unknown | 1999-03-24 |
| Series | Judging Amy | Unknown | 1999-09-19 |
| Series | Family Guy | Unknown | 1999-01-31 |
| Series | The King of Queens | Unknown | 1998-09-21 |
| Series | Premium Blend | Unknown | 1997-11-29 |
| Series | The Practice | Unknown | 1997-03-04 |
| Series | Extra | Unknown | 1994-09-05 |
| Series | The Tonight Show with Jay Leno | Unknown | 1992-05-25 |
| Series | Entertainment Tonight | Unknown | 1981-09-14 |