| 2024 | The Exorcism | Father Conor | ★ 5.1 |
| 2019 | The Lavender Scare | Dr. Franklin E. Kameny (voice) | ★ 6.3 |
| 2016 | Must See TV: An All Star Tribute to James Burrows | Self | ★ 4.3 |
| 2015 | Hurricane of Fun: The Making of Wet Hot | Self | ★ 6.4 |
| 2012 | Vanya and Sonia and Masha and Spike | Vanya | ★ 0.0 |
| 2010 | Sondheim! The Birthday Concert | Self - Host | ★ 8.0 |
| 2010 | Dinner for one - Eine mörderische Party | Warwick Wilson | ★ 6.4 |
| 2009 | Forever Plaid | The Narrator | ★ 8.0 |
| 2009 | Stingray Sam | Narrator | ★ 6.7 |
| 2008 | Monty Python Conquers America | Self | ★ 6.5 |
| 2006 | The Amazing Screw-On Head | Emperor Zombie (voice) | ★ 6.8 |
| 2006 | World's Greatest Stand Up: Volume One | self | ★ 0.0 |
| 2005 | Celebrity Mix | Self (archive footage) | ★ 0.0 |
| 2004 | Frasier: Analyzing the Laughter | Niles Crane | ★ 8.7 |
| 2004 | Hellboy | Abe Sapien (voice) (uncredited) | ★ 6.7 |
| 2003 | Down with Love - Zum Teufel mit der Liebe! | Peter MacMannus | ★ 6.1 |
| 2003 | The Shakespeare Sessions | | ★ 7.0 |
| 2002 | Der Schatzplanet | Doctor Doppler (voice) | ★ 7.6 |
| 2002 | Voll frontal | Carl | ★ 4.6 |
| 2002 | Laud Weiner | Laud Weiner | ★ 7.0 |
| 2001 | Osmosis Jones | Drix (voice) | ★ 6.5 |
| 2001 | Wet Hot American Summer | Henry | ★ 6.3 |
| 2001 | On the Edge | Barney (segment "Happy Birthday") | ★ 6.1 |
| 2001 | Chain of Fools | Mr. Kerner | ★ 5.8 |
| 2000 | Die Geschichte vom Teddy, den niemand wollte | Bird (voice) | ★ 6.9 |
| 2000 | Ist sie nicht großartig? | Michael Hastings | ★ 4.8 |
| 1999 | Das sonderbare Liebesleben der Erdlinge | The Narrator | ★ 6.0 |
| 1999 | Jackie's Back! | Perry (The Deaf Rehearsal Pianist) | ★ 7.8 |
| 1998 | Das grosse Krabbeln | Slim (voice) | ★ 7.0 |
| 1996 | Star Trek - 30 Jahre und darüber hinaus | Niles Crane | ★ 5.8 |
| 1995 | Nixon | John Dean | ★ 6.9 |
| 1995 | The World of James Bond | | ★ 6.0 |
| 1994 | Wolf - Das Tier im Manne | Roy McCallister | ★ 6.1 |
| 1993 | Die Addams Family in verrückter Tradition | Delivery Room Doctor | ★ 7.0 |
| 1993 | Schlaflos in Seattle | Dennis Reed | ★ 6.7 |
| 1991 | König der Fischer | Lou Rosen | ★ 7.3 |
| 1991 | Das Wunderkind Tate | Garth Emmerick | ★ 6.6 |
| 1989 | Vampire's Kiss | Theater Guy | ★ 5.9 |
| 1988 | The Appointments of Dennis Jennings | Businessman | ★ 6.5 |
| 1988 | Rocket Gibraltar | Monsieur Henri | ★ 5.9 |
| 1988 | Sarah und Sam | Mark | ★ 5.9 |
| 1988 | Die grellen Lichter der Großstadt | Bartender at Fashion Show | ★ 5.7 |
| 1985 | Traffic School - Die Blech- und Dachschaden-Kompanie | Immigration Officer | ★ 5.5 |
| Mouse | | ★ 0.0 |
