Season 4

This article contains episode summaries for the fourth season of Desperate Housewives.

Season summary
In the U.S., original episodes of season four aired between September 30, 2007 and May 18, 2008.

Starring

 * Teri Hatcher - Susan Delfino (17/17)
 * Felicity Huffman - Lynette Scavo (17/17)
 * Marcia Cross - Bree Hodge (17/17)
 * Eva Longoria Parker - Gabrielle Solis (17/17)
 * Nicollette Sheridan - Edie Britt (15/17)
 * Ricardo Antonio Chavira - Carlos Solis (17/17)
 * Andrea Bowen - Julie Mayer (14/17)
 * Doug Savant - Tom Scavo (17/17)
 * Kyle MacLachlan - Orson Hodge (17/17)
 * Dana Delany - Katherine Mayfair (16/17)
 * with Brenda Strong - Mary Alice Young (17/17)
 * and James Denton - Mike Delfino (16/17)

Also Starring

 * Shawn Pyfrom - Andrew Van de Kamp (11/17)
 * Lyndsy Fonseca- Dylan Mayfair (14/17)
 * Joy Lauren - Danielle Van de Kamp (4/17)*
 * Brent Kinsman - Preston Scavo (14/17)
 * Shane Kinsman - Porter Scavo (14/17)
 * Zane Huett - Parker Scavo (10/17)
 * Rachel Fox - Kayla Scavo (10/17)*

* Not credited in "Now You Know".

Recurring Guest Stars

 * Nathan Fillion - Adam Mayfair (11/17)
 * Kathryn Joosten - Karen McCluskey (10/17)
 * Kevin Rahm - Lee McDermott (7/17)
 * John Slattery - Victor Lang (7/17)
 * Tuc Watkins - Bob Hunter (7/17)
 * Gary Cole - Wayne Davis (6/17)
 * Polly Bergen - Stella Wingfield (5/17)
 * Justine Bateman - Ellie Leonard (4/17)
 * Pat Crawford Brown - Ida Greenberg (4/17)
 * Jason Gedrick - Rick Coletti (2/17)
 * Shirley Knight - Phyllis Van de Kamp (2/17)
 * Dale Waddington - Nurse Voorhees (2/17)
 * Daniella Baltodano - Celia Solis (1/17)
 * Richard Burgi - Karl Mayer (1/17)
 * Jeff Doucette - Father Crowley (1/17)
 * Gale Harold - Jackson Braddock (1/17)
 * Dakin Matthews - Reverend Sikes (1/17)
 * Billy Mayo - Detective Lyons (1/17)
 * Jesse Metcalfe - John Rowland (1/17)

Main Plot Points

 * Susan and Mike are married and expecting a child.
 * Lynette fights cancer, her alcoholic mother and her scheming stepdaughter.
 * Bree conceals both a real and a fake pregnancy and has marital problems with Orson.
 * Gabrielle is trapped in an unhappy marriage with Victor while having an affair with Carlos.
 * Edie tries to secure her relationship with Carlos, and later comes to blows with Bree.
 * Katherine moves back to the lane with a new family and several secrets.