Katherine Irma Mayfair is a fictional character created by Marc Cherry for the ABC television series Desperate Housewives. The character was portrayed by Dana Delany and first appeared in the series' fourth season premiere on September 30, 2007, as the focus of the yearly mystery.
Dana Delany as Katherine Mayfair
Desperate Housewives is an American comedy-drama mystery television series created by Marc Cherry and produced by ABC Studios and Cherry Productions. It aired for eight seasons on ABC from October 3, 2004, until May 13, 2012, for a total of 180 episodes. Executive producer Marc Cherry served as showrunner. Other executive producers since the fourth season included Bob Daily, George W. Perkins, John Pardee, Joey Murphy, David Grossman, and Larry Shaw.
The Applewhite house, focus of Desperate Housewives' season-long mystery from 2005 to 2006
The house of Katherine Mayfair on Wisteria Lane, as seen on Desperate Housewives from 2007 to 2010
The residence of Mary Alice Young (as seen in the premiere episode of Desperate Housewives), on Wisteria Lane
L–R: Dana Delany, Teri Hatcher, Brenda Strong and Andrea Bowen at the 20th GLAAD Media Awards at the Nokia Theatre in Los Angeles, California on April 18, 2009