Estabrook, who played nosy neighbor Martha Huber, was killed off in the show's first season, but has made return appearances through a series of flashbacks. Delany will reprise her role as Katherine Mayfair, who was last seen running off with her significant other, Robin.
Estabrook has been seen on Broadway in Spring Awakening, The Sisters Rosenweig, I'm Not Rappaport, The Inspector General and The Cherry Orchard. For more on Estabrook's theatrical history, visit the Playbill Vault.
Delany has appeared on Broadway in Translations and A Life. For more on Delany's theatrical history, visit the Playbill Vault.
"Desperate Housewives" airs Sunday nights at 9 PM ET on ABC.