Desperate Housewives Casting Spoilers: Tom Gets a Mom!

According to TV Guide, Lois Smith, who most recently played grandmother to Jason and Sookie Stackhouse on True Blood, will be joining the 7th season of Desperate Housewives in the 5th episode. She will be playing Allison Scavo, Tom's mother, who moves in with Tom and Lynette to help her son deal with a unique case of male postpartum depression.

Marc Cherry goes on to provide further spoilers and  describes Allison as "a very traditional homemaker whose ideas of what women should be to their husbands really smacks right against Lynette's more modern views of womanhood." As of now, Smith's character is slated for two episodes.