Brothers & Sisters Casting Spoilers: Monk vs. Field

Debra Monk will be debuting in the 5th episode of the 5th season of Brothers & Sisters as Alexandra Kirby, a rival for Sally Field's Nora. Previous spoilers hinted that Nora would be getting a job as the radio host of an Ask Mom Radio Program. Now we are learning she will have competition in the form of Monk's more experienced character.

Source: TV Guide