| 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:
“The television screen, so unlike the movie screen, sharply reduced human beings, revealed them as small, trivial, flat, in two banal dimensions, drained of color. Wasn’t there something reassuring about it!—that human beings were in fact merely images of a kind registered in one another’s eyes and brains, phenomena composed of microscopic flickering dots like atoms. They were atoms—nothing more. A quick switch of the dial and they disappeared and who could lament the loss?”
—Joyce Carol Oates (b. 1938)
“You seem to have no real purpose in life and won’t realize at the age of twenty-two that for a man life means work, and hard work if you mean to succeed.”
—Jennie Jerome Churchill (1854–1921)