Musical
<Short Talks on the Universe, 2002> Original Special - Lucifer
<The Producers, 2001-2007> Original - Leo Bloom(2001-2002, 2003-2004)
<How to Succeed in Business Without Really Trying, 1995-1996> Revival - J. Pierrepont Finch
 

Play
<The Odd Couple, 2005-2006> Revival - Felix Ungar
<Taller Than a Dwarf, 2000> Original - Howard Miller
<Night Must Fall, 1999> Revival - Dan
<Biloxi Blues, 1985-1986> Original - Eugene Morris Jerome
<Brighton Beach Memoirs, 1983-1986> Original - Eugene Jerome

Film
<The Tale of Despereaux, 2008> Despereaux(voice)
<Wonderful World, 2008> Ben Singer
<Margaret, 2008>
<30 Rock, 2008> Cooter
<Finding Amanda, 2008>
<Diminished Capacity, 2008>
<Bee Movie, 2007> Adam Flayman(voice)
<Then She Found Me, 2007> Ben
<Deck the Halls, 2006> Steve Finch
<The Producers, 2005> Leo Bloom
<Strangers with Candy, 2005> Roger Beekman
<The Last Shot, 2004> Steven Schats
<The Stepford Wives, 2004> Walter Kresby
<The Lion King 1½, 2004> Simba(voice)
<Marie and Bruce, 2004> Bruce
<Good Boy!, 2003> Hubble(voice)
<The Music Man, 2003> Professor Harold Hill
<Freedom: A History of Us, 2003> Gen. William Tecumseh Sherman
<You Can Count on Me, 2000> Brian Everett
<Inspector Gadget, 1999> Officer John Brown, Inspector Gadget, Robo Gadget
<Election, 1999> Jim McAllister
<The American Experience, 1999>
<The Lion King II: Simba's Pride, 1998> Simba(voice)
<Walking to the Waterline, 1998> Michael Woods
<Godzilla, 1998> Dr. Niko Tatopoulos
<Addicted to Love, 1997> Sam
<Infinity, 1996> Actor(Richard Feynman), Director, Producer
<The Cable Guy, 1996> Steven M. Kovacs
<Frasier, 1995> Mark
<The Road to Wellville, 1994> William Lightbody
<Mrs. Parker and the Vicious Circle, 1994> Charles MacArthur
<The Lion King, 1994> Adult Simba(voice)
<A Life in the Theater, 1993> John
<The Night We Never Met, 1993> Sam Lester
<The Princess and the Cobbler, 1993> Tack the Cobbler(voice)
<Out on a Limb, 1992> Bill Campbell
<The Freshman, 1990> Clark Kellogg(Narrator)
<Glory, 1989> Col. Robert Gould Shaw
<Family Business, 1989> Adam McMullen
<Torch Song Trilogy, 1988> Alan Simon
<Biloxi Blues, 1988> Eugene Morris Jerome
<She's Having a Baby, 1988> Ferris Bueller
<Project X, 1987> Jimmy Garrett
<Ferris Bueller's Day Off, 1986> Ferris Bueller
<On Valentine's Day, 1986> Brother
<Faerie Tale Theatre, 1985> Prince Henry
<1918, 1985> Brother
<Ladyhawke, 1985> Phillipe Gaston
<Master Harold... and the Boys, 1985> Master Harold 'Hally'
<WarGames, 1983> David Lightman
<Max Dugan Returns, 1983> Michael McPhee