Kathryn is best known for her portrayals of "Karen McCluskey" on Desperate Housewives (2004) on ABC and of "Mrs. Landingham", secretary to the President (Martin Sheen), on the critically-acclaimed NBC drama, The West Wing (1999). She has also recurred on Dharma & Greg (1997), and guest-starred on many hit television series, such as Becker (...
Won 2 Primetime Emmys. Another 1 win & 6 nominations.
| Series | Scrubs | Unknown | 2017 |
| Series | The Evidence | Unknown | 2016-03-05 |
| Movie | Wish Wizard | Mrs. Inkwell | 2014-04-01 |
| Series | Wild Card | Dottie | 2014 |
| Movie | Searching | Unknown | 2013 |
| Movie | 19th Annual Screen Actors Guild Awards | Unknown | 2013 |
| Movie | Desperate Housewives: I Guess This Is Goodbye | Unknown | 2012-09-25 |
| Movie | The 64th Primetime Emmy Awards | Unknown | 2012-09-23 |
| Movie | Mega Python vs. Gatoroid | Unknown | 2011 |
| Movie | Mitzvah Communion | Unknown | 2011 |
| Series | Harry's Law | Unknown | 2011-01-17 |
| Series | The Talk | Unknown | 2010-10-18 |
| Movie | The Committee Ep. 2: Butterfly Enclosure | Unknown | 2010 |
| Movie | The Committee Ep 1: Bad Dog | Unknown | 2010 |
| Movie | Alvin and the Chipmunks: The Squeakquel | Unknown | 2009 |
| Series | ACME Saturday Night | Unknown | 2009 |
| Movie | The Bake Shop Ghost | Unknown | 2009 |
| Movie | Annul Victory | Unknown | 2009 |
| Movie | I Know Things Now: Desperate Housewives Celebrates 100 | Unknown | 2009-09-01 |
| Series | The Cleveland Show | Unknown | 2009-09-01 |
| Series | The Mentalist | Unknown | 2008-09-23 |
| Movie | The 60th Primetime Emmy Awards | Unknown | 2008 |
| Movie | Bedtime Stories | Mrs. Dixon | 2008-12-25 |
| Movie | 2008 Primetime Creative Arts Emmy Awards | Unknown | 2008 |
| Series | The Bonnie Hunt Show | Unknown | 2008 |
| Movie | 12th Annual Prism Awards | Unknown | 2008 |
| Series | Desperate Housewives | Unknown | 2008 |
| Movie | Rails & Ties | Mrs. Brown | 2008-04-18 |
| Movie | The Gold Lunch | Judge | 2008-08-03 |
| Series | The Suite Life of Zack and Cody | Unknown | 2007 |
| Movie | Desperate Housewives Special: The Juiciest Bites | Unknown | 2007 |
| Series | In Case of Emergency | Unknown | 2007 |
| Movie | Jane Doe: Ties That Bind | Unknown | 2007 |
| Movie | Desperate Housewives Special: Secrets and Lies | Unknown | 2007-09-23 |
| Movie | Desperate Housewives Special: The More You Know, the Juicier It Gets | Unknown | 2006 |
| Movie | Dark Mind | Unknown | 2006-03-21 |
| Movie | Desperate Housewives Special: All the Juicy Details | Unknown | 2006 |
| Movie | The TV Set | Unknown | 2006-04-28 |
| Series | Saved | Unknown | 2006-06-12 |
| Movie | McBride: It's Murder, Madam | Unknown | 2005 |
| Movie | Fathers and Sons | Unknown | 2005 |
| Series | Love, Inc. | Unknown | 2005 |
| Movie | Halfway Decent | Unknown | 2005 |
| Movie | Breadwinners | Unknown | 2005 |
| Movie | Taking Your Life | Unknown | 2005 |
| Movie | Cheaper by the Dozen 2 | Unknown | 2005 |
| Series | Life on a Stick | Unknown | 2005 |
| Series | The Closer | Unknown | 2005-06-13 |
| Movie | Hostage | Unknown | 2005-03-11 |
| Movie | Wedding Crashers | Unknown | 2005-07-15 |
| Series | Grey's Anatomy | Unknown | 2005-03-27 |
| Movie | The 57th Annual Primetime Emmy Awards | Unknown | 2005-09-18 |
| Series | My Name Is Earl | Unknown | 2005-09-20 |
| Movie | Combustion | Unknown | 2004 |
| Movie | Breaking Dawn | Neighbor | 2004-10-16 |
| Series | Father of the Pride | Unknown | 2004 |
| Movie | Wasabi Tuna | Unknown | 2003 |
| Series | Joan of Arcadia | Unknown | 2003-09-25 |
| Movie | Highway to Oblivion | Unknown | 2003 |
| Series | SoapTalk | Unknown | 2003 |
| Series | Las Vegas | Unknown | 2003-09-22 |
| Movie | Secret Santa | Unknown | 2003 |
| Series | Hope & Faith | Unknown | 2003-09-26 |
| Series | 10-8: Officers on Duty | Unknown | 2003 |
| Series | A.U.S.A. | Unknown | 2003 |
| Movie | Red Roses and Petrol | Unknown | 2003 |
| Movie | Lehi's Wife | Unknown | 2002 |
| Movie | Cojones | Old Lady | 2002-06-01 |
| Series | Monk | Unknown | 2002-07-12 |
| Series | Everwood | Unknown | 2002-09-16 |
| Series | Less Than Perfect | Unknown | 2002-10-01 |
| Series | Life with Bonnie | Unknown | 2002 |
| Series | Raising Dad | Unknown | 2002 |
| Series | Reba | Unknown | 2001-10-05 |
| Series | Dead Last | Unknown | 2001-08-14 |
| Series | The Division | Unknown | 2001-01-07 |
| Series | The Test | Unknown | 2001 |
| Series | So Little Time | Unknown | 2001 |
| Movie | Hellraiser: Inferno | Unknown | 2000 |
| Series | Titus | Unknown | 2000 |
| Series | Strong Medicine | Unknown | 2000-07-23 |
| Series | Malcolm in the Middle | Unknown | 2000-01-09 |
| Series | Even Stevens | Unknown | 2000-06-17 |
| Series | Gilmore Girls | Unknown | 2000-10-05 |
| Movie | Code Blue | Gladys Reilly | 2000-11-07 |
| Series | Curb Your Enthusiasm | Unknown | 2000-10-15 |
| Series | Yes, Dear | Unknown | 2000-10-02 |
| Series | Providence | Unknown | 1999-01-08 |
| Movie | Kiss Toledo Goodbye | Unknown | 1999 |
| Series | Judging Amy | Unknown | 1999-09-19 |
| Series | Thanks | Mrs. Sturges | 1999-08-02 |
| Series | The West Wing | Unknown | 1999-09-22 |
| Series | 3rd Rock from the Sun | Unknown | 1999 |
| Series | Dharma & Greg | Unknown | 1999 |
| Series | Will & Grace | Unknown | 1998-09-21 |
| Series | The King of Queens | Unknown | 1998-09-21 |
| Series | Charmed | Unknown | 1998-10-07 |
| Movie | Phoenix | Unknown | 1998 |
| Series | Prey | Unknown | 1998 |
| Series | Becker | Unknown | 1998-11-02 |
| Series | Nothing Sacred | Unknown | 1998 |
| Series | Men Behaving Badly | Unknown | 1997 |
| Series | Ally McBeal | Unknown | 1997-09-08 |
| Series | Brooklyn South | Unknown | 1997-09-22 |
| Movie | Best Men | Edie | 1997-10-17 |
| Series | The View | Unknown | 1997-08-11 |
| Series | Buffy the Vampire Slayer | Unknown | 1997-03-10 |
| Movie | Eating Las Vegas | Unknown | 1997 |
| Series | Just Shoot Me! | Unknown | 1997-03-04 |
| Series | Goode Behavior | Unknown | 1997 |
| Series | Tracey Takes On... | Unknown | 1996-01-24 |
| Series | Spin City | Unknown | 1996-09-17 |
| Series | Profiler | Unknown | 1996-09-21 |
| Series | Life with Roger | Unknown | 1996-09-08 |
| Series | Arli$$ | Unknown | 1996-08-10 |
| Movie | The Making of a Hollywood Madam | Unknown | 1996 |
| Series | Boston Common | Unknown | 1996 |
| Series | The Drew Carey Show | Unknown | 1995-09-13 |
| Movie | The Stranger Beside Me | Unknown | 1995 |
| Series | Pointman | Unknown | 1995 |
| Series | ER | Unknown | 1994-09-19 |
| Series | Chicago Hope | Unknown | 1994-09-18 |
| Series | Frasier | Unknown | 1993-09-16 |
| Series | Grace Under Fire | Unknown | 1993 |
| Series | NYPD Blue | Unknown | 1993-09-21 |
| Series | The Nanny | Unknown | 1993-11-03 |
| Series | The X-Files | Unknown | 1993-09-10 |
| Series | Picket Fences | Unknown | 1992-09-18 |
| Series | Home Improvement | Unknown | 1991-09-17 |
| Series | Seinfeld | Unknown | 1990-05-31 |
| Series | Family Matters | Unknown | 1989-09-22 |
| Movie | The Package | Unknown | 1989-08-25 |
| Series | Roseanne | Unknown | 1988-10-18 |
| Series | Murphy Brown | Unknown | 1988-11-14 |
| Series | The Bold and the Beautiful | Unknown | 1987-03-23 |
| Series | Sable | Unknown | 1987 |
| Movie | Lady Blue | Unknown | 1985 |
| Movie | Grandview, U.S.A. | Unknown | 1984 |
| Series | General Hospital | Unknown | 1963-04-01 |