Patty Duke will guest star on 'Hawaii Five-0.' Unfortunately, she will not be playing identical cousins.

According to Entertainment Weekly, the legendary actress will play a mother of a murder victim. She has Alzheimer's and when the team goes to inform her of the bad news, she believes her grown son is still a child. Did somebody just clinch an Emmy nomination for 2012?

Duke's episode is the second of the new season, premiering Sept. 19 at 10PM on CBS.

In other casting news ...

Murphy Brown is in the 'House.' Yep, Candice Bergen is making a 'House' call to play Cuddy's mother on the hit Fox medical drama.

OK, enough with the puns, here are the details: The five-time Emmy winner will begin her multi-episode arc in November. According to The Ausiello Files, this is Bergen's first TV role since 'Boston Legal' wrapped. No word on an official episode count, but be sure to see plenty of shared screen time between Bergen, Lisa Edelstein (Cuddy) and Hugh Laurie (House).

In other casting news ...

• Patty Duke has joined the cast of Lifetime's 'Unanswered Prayers,' the TV flick about Garth Brooks' song. The movie follows a couple, played by Eric Close and Samantha Mathis, whose lives change when a woman, played by Madchen Amick, returns to their small town. Duke will play mom to Manthis' character. Alex Frnka has also been cast as the girlfriend to the couple's son. [Deadline Hollywood]

• Lucy Liu will headline 'Marry Me,' a four-hour multi-part movie on Lifetime. The movie, about a woman looking for her true love, also has Steven Pasquale, Bobby Cannavale , Enrique Murciano and Annie Potts on board. [Variety]

• Lou Diamond Phillips has joined Sherry Stringfield and Jamie-Lynn Sigler in Josh Berman's untitled Lifetime cop pilot. Phillips will play the boss to Stringfield and Sigler's police detective characters. [Deadline Hollywood]

He might be best remembered by television fans as the creator and writer of such shows as I Dream of Jeannie and The Patty Duke Show, but Sidney Sheldon also wrote for the theater and was a novelist as well, writing several over the years (and he started writing novels at age 50!), including The Other Side of Midnight, If Tomorrow Comes, Rage of Angels, Bloodline, and Master of the Game.

Besides I Dream of Jeannie and Patty Duke, he also wrote or created several other series, including Hart to Hart and Nancy, and wrote an episode of the Twilight Zone revival in the mid 80s. Movies he wrote or co-wrote include the Dean Martin/Jerry Lewis comedy Pardners, Easter Parade, The Buster Keaton Story, and The Bachelor and The Bobby Soxer.

Sheldon died this afternoon in Los Angeles from pneumonia.