| Year | Title | Role | Notes |
|---|---|---|---|
| 1985–1986 | Another World | Ned | Unknown episodes |
| 1988 | Spenser: For Hire | K.C. | 1 episode |
| 1993 | Last Outlaw, TheThe Last Outlaw | Wills | Television film |
| 1994 | Frasier | Danny Kriezel | Episode: "Seat of Power" |
| 1997 | Practice, TheThe Practice | Atty. Leonard Goode | 2 episodes |
| 1997 | Intensity | Edgler Foreman Vess | Television film |
| 1998 | Pentagon Wars, TheThe Pentagon Wars | Col. J.D. Bock | Television film |
| 2000 | Sole Survivor | Victor Yates | Television film |
| 2001–2010 | Scrubs | Dr. Perry Cox | 179 episodes Series Regular Nominated - TCA Award for Individual Achievement in Comedy (2002) Nominated - Satellite Award for Best Actor – Television Series Musical or Comedy (2002) |
| 2002 | Clone High | Doug Prepcourse (Voice) | 1 episode |
| 2003 | Kim Possible | Rudolph "White Stripe" Farnsworth (Voice) | 1 episode |
| 2003 | Spider-Man: The New Animated Series | Richard Damien (Voice) | 2 episodes |
| 2003.1 !2003–2005 | Justice League Unlimited | The Atom (Voice) | 4 episodes |
| 2005 | Alien Planet | Narrator | |
| 2006–2010 | Boondocks, TheThe Boondocks | The White Shadow (Voice) | 2 episodes |
| 2008–present | WordGirl | The Whammer (Voice) | 4 episodes |
| 2011 | Dan Vs. | Imposter Dan (voice) | 2 episodes |
| 2012 | Burn Notice | Tom Card | 3 episodes |
Read more about this topic: John C. McGinley
Famous quotes containing the words television and/or work:
“Photographs may be more memorable than moving images because they are a neat slice of time, not a flow. Television is a stream of underselected images, each of which cancels its predecessor. Each still photograph is a privileged moment, turned into a slim object that one can keep and look at again.”
—Susan Sontag (b. 1933)
“Your children get a lot of good stuff out of your work...They benefit from the tales you tell over dinner. They learn from the things you explain to them about what you do. They brag about you at school. They learn that work is interesting, that it has dignity, that it is necessary and pleasing, and that it is a perfectly natural thing for both mothers and fathers to do...Your work enriches your children more than it deprives them.”
—Louise Lague (20th century)