House is gearing up to meet Cuddy's family.

As previously reported, veteran actress Candice Bergen will guest star on this Fox hit as the mother of Dr. Lisa Cuddy. Look for her and her daughter's new boyfriend to clash.

Now, TV Guide also confirms that Cuddy's sister, Lucinda, is coming to town. She'll be portrayed by Paula Marshall.

Executive producer David Shore hints that there may be some secrecy involving Lucinda's presence on the show.

Marshall, meanwhile, will likely debut in January. She's best known for roles on Gary Unmarried, Californication and Nip/Tuck.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.