2014
Partners
(TV Series) (executive producer - 1 episode)
2006-2013
The Game
(TV Series) (executive producer - 59 episodes)
2011-2012
Boss
(TV Series) (executive producer - 18 episodes)
-
Clinch
(2012)
... (executive producer)
2005-2011
Medium
(TV Series) (executive producer - 129 episodes)
2009-2010
Hank
(TV Series) (executive producer - 6 episodes)
2007-2008
Back to You
(TV Series) (executive producer - 17 episodes)
2000-2008
Girlfriends
(TV Series) (executive producer - 172 episodes)
1993-2004
Frasier
(TV Series) (executive producer - 262 episodes)
-
Detour
(2004)
... (executive producer)
2003
Gary the Rat
(TV Series) (executive producer - 12 episodes)
2002-2003
In-Laws
(TV Series) (executive producer - 15 episodes)
1997-1998
Fired Up
(TV Series) (executive producer - 28 episodes)
-
Lustline
(1998)
... (executive producer)
1992-2015
The Simpsons
(TV Series) (performer - 7 episodes)
-
The Bob Next Door
(2010)
... (performer: "Behold the Lord High Executioner" - uncredited)
-
The Italian Bob
(2005)
... (performer: "Vesti la giubba", "These Boots Are Made for Walkin'" - uncredited)
2004
A Christmas Carol
(TV Movie) (performer: "Jolly Good Time", "Nothing to Do With Me Pt. 1", "Nothing to Do With Me Pt. 2", "A Place Called Home (Reprise)", "Dancing on Your Grave", "Yesterday, Tomorrow and Today/God Bless Us Every One (reprise)", "What a Day, What a Sky", "Christmas Together" - uncredited)
1993-2004
Frasier
(TV Series) (performer - 262 episodes)
-
Crock Tales
(2004)
... (performer: "Tossed Salads and Scrambled Eggs")
-
Detour
(2004)
... (performer: "Tossed Salads and Scrambled Eggs")
1999
Animal Farm
(TV Movie) (performer: "Beasts of the World")
1997
Anastasia
(performer: "A Rumor in St. Petersburg", "Learn to Do It", "Learn to Do It" (Waltz Reprise))
1987-1992
Cheers
(TV Series) (performer - 10 episodes)
2014-2015
The Talk
(TV Series)
Himself - Guest
2014-2015
Extra
(TV Series)
Himself
/ Himself - Expendables 3 & Partners
2014
Today
(TV Series)
Himself - Guest
2012
Conan
(TV Series)
Himself
2010
The 64th Annual Tony Awards
(TV Special)
Himself - Nominee: Best Lead Actor in a Musical & Presenter: Best Featured Actress in a Musical
2009
Boogie
(TV Series)
Himself
2006
HypaSpace
(TV Series documentary)
Himself
2001-2006
MADtv
(TV Series)
Himself
2003
Biography
(TV Series documentary)
Himself
/ Narrator
2003
Banzai
(TV Series)
Himself
2002
8th Annual Screen Actors Guild Awards
(TV Special)
Himself - Nominee: Best Performance by Male Actor in Comedy Series and Nominee: Best Oustanding Performance by Ensemble in Comedy Series
2002
The 59th Annual Golden Globe Awards
(TV Special documentary)
Himself - Nominee: Best Actor in a Television Series - Musical or Comedy & Presenter: Best Television Series Drama
2001
7th Annual Screen Actors Guild Awards
(TV Special)
Himself - Nominee: Outstanding Performance by a Male Actor in a Comedy Series and Outstanding Performance by an Ensemble in a Comedy Series
1999
First Dogs
(TV Movie documentary)
Narrator
(voice)
1993
Jeopardy!
(TV Series)
Himself - Celebrity Contestant