FOX has determined which “Bones” episode the Deschanel sisters should appear together in. Through a press release, the network announced that Emily Deschanel and Zooey Deschanel will do a sister act on the December 10 episode called “The Goop on the Girl“. It will be a special holiday-themed episode which is also guest starring Farrah Fawcett’s widower Ryan O’Neal.

Zooey’s role on the show would be a distant relative of Emily’s Dr. Temperance Brennan named Margaret Whitesell. O’Neal, meanwhile, reprises his role as Max Keenan, Brennan’s dad. When Keenan makes contact with Margaret, he invites her to spend Christmas with him and his daughter. Meanwhile, Brennan and Booth investigate the death of a man dressed as Santa Claus who was blown up after a botched bank robbery.

Zooey Deschanel takes more feature film projects than her sister. She made a starring role in “The Assassination of Jesse James by the Coward Robert Ford” and most recently, “500 Days of Summer”. She is also a recurring role on “Weeds” as the free-spirited Kat.

In the press release, FOX also announced that the 100th episode of the show will be directed by David Boreanaz. It will air in Spring 2010.

IT’S A REAL SISTER ACT WHEN ZOOEY DESCHANEL GUEST-STARS ON “BONES” THURSDAY, DECEMBER 10, ON FOX

Ryan O’Neal Also Guest-Stars in Episode

Zooey Deschanel, star of the romantic comedy “(500) Days of Summer” and sister of BONES’ Emily Deschanel, will guest-star in “The Goop on the Girl,” a special holiday-themed episode of BONES airing Thursday, Dec. 10 (8:00-9:00 PM ET/PT) on FOX.

In this first-ever on-screen pairing of the Deschanel sisters, Zooey Deschanel plays MARGARET WHITESELL, a distant relative of DR. TEMPERANCE BRENNAN (Emily Deschanel). When Brennan’s father, MAX KEENAN (guest star Ryan O’Neal), makes contact with Margaret, he invites her to spend Christmas with him and his daughter. Meanwhile, Brennan and BOOTH (David Boreanaz) investigate the death of a man dressed as Santa Claus who was blown up after a botched bank robbery.

Zooey Deschanel’s film credits include “All the Real Girls” for which she received an Independent Spirit Award nomination for Lead Actress; “Elf” with Will Ferrell; “The Hitchhiker’s Guide to the Galaxy” with Sam Rockwell, Mos Def and John Malkovich; “The Assassination of Jesse James by the Coward Robert Ford” opposite Brad Pitt and Casey Affleck; “Gigantic” with Paul Dano; and “Yes Man” opposite Jim Carrey. She will next be seen in the film “Your Highness” opposite Danny McBride, James Franco and Natalie Portman. In addition to her work on-screen, Deschanel and singer-songwriter M. Ward perform together as the musical duo She & Him. The pair has earned rave reviews for their debut album, “Volume 1.”

The milestone 100th episode of BONES, directed by Boreanaz, will air in spring 2010.

Get Bones all episodes in hd quality HERE

Moonlighting did it back in the 80’s. And now Fox’s Bones is planning an all black and white episode to air this spring.

“A lot of shows have done those 40’s film noir episodes,” the show’s executive producer Stephen Nathan tells me. “But what we’re thinking of doing is going back a few more years to a 1930’s era homage to Depression-Era comedies like (1936’s) “My Man Godfrey” (starring William Powell and Carole Lombard) or (1934’s) “The Thin Man” (starring Powell and Myrna Loy as Nick and Nora Charles), where they’re living the high life in the midst of the Depression – drinking and having a good time while solving murders.”

What a bizarre concept – Temperance Brennan drinking and having a good time?!

BRENNAN AND BOOTH’S LATEST CASE COULD CHANGE HISTORY ON “BONES” THURSDAY, OCTOBER 15, ON FOX

Carla Gallo Guest-Stars

Brennan and Booth are called to investigate what appears to be charred human remains on an electrical fence. The mysterious corpse is later determined to be a mummified Egyptian royal on loan to the Jeffersonian. The anthropological mystery has Brennan in a tizzy, and when the Jeffersonian curator prepping the mummy for exhibition is murdered, the team suspects foul play. Brennan’s investigation of the curator sheds new light on the life of the Egyptian royal, turning their case into one of historic proportions. Meanwhile, Brennan goes on a date with Booth’s supervisor and former intern, and Sweets’ girlfriend Daisy Wick (guest star Gallo) returns to the Jeffersonian in the “A Night at the Bones Museum” episode of BONES airing Thursday, Oct. 15 (8:00-9:00 PM ET/ PT) on FOX. (BON-505) (TV-14 D)

Cast: Emily Deschanel as Dr. Temperance Brennan; David Boreanaz as FBI Special Agent Seeley Booth; TJ Thyne as Dr. Jack Hodgins; Michaela Conlin as Angela Montenegro; Tamara Taylor as Dr. Camille “Cam” Saroyan; John Francis Daley as Dr. Lance Sweets

Guest Cast: Diedrich Bader as Andrew Hacker; Mozhan Marno as Azita Jabbari; Eli Goodman as Alexander Landau; Carla Gallo as Daisy Wick; Kasey Mahaffy as Leland Frankel; Andy Umberger as Steven Turnbull

Download “A Night at the Bones Museum” Episode

After an exhaustive search (and months of me teasing this character in my column), Fox’s Bones has finally cast a grandfather (Or ‘Pops’) for David Boreanaz’s Seeley Booth. Hank Booth, a former army EMT, will be played by a Walton… specifically, Ralph Waite, who played patriarch John Walton on The Waltons from 1972-81.

Sounds like Ralph will need to be spry, considering his character will insist on accompanying his grandson out into the field to investigate “The Foot in the Foreclosure” on the Nov. 19 episode. “This is a really good murder,” promises Nathan. “All that’s left is ash and one foot, and Hank can’t help but tag along.”

The episode kicks off with Hank, recovering from a bypass, leaving a nursing home after getting into physical altercations with his male nurses. “He walks out and comes to live with Booth, whom he raised,” says Nathan. “They’ll try to rekindle the life they had for so many years, but you can never quite reclaim the past.”

We will also learn the reasons behind Booth’s abusive father abandoning his son at age 11, which David hopes will lead an NYPD Blue vet out of retirement. “I want Dennis Franz to play my dad,” David tells me. “He’d be perfect for Booth’s dad. I would love to make this happen.”

Nathan says Bones still plans to cast Booth’s father at a later date, adding, “You can’t introduce too many relatives at once.”

IT’S NOT SUCH A BEAUTIFUL DAY IN THE NEIGHBORHOOD ON “BONES” THURSDAY, OCTOBER 8, ON FOX

Brennan and Booth investigate human remains found at a neighborhood block party. Suburban politics and secret scandals give each neighbor in the cul-de-sac a motive, leaving Brennan, Booth and Sweets to sift through the drama to find their suspect. Meanwhile, Jeffersonian intern Arastoo comes clean about his background, and Booth’s son attempts to find Booth a girlfriend in “The Beautiful Day in the Neighborhood” episode of BONES airing Thursday, Oct. 8 (8:00-9:00 PM ET/PT) on FOX. (BON-504) (TV-14 D, L)

Cast: Emily Deschanel as Dr. Temperance Brennan; David Boreanaz as FBI Special Agent Seeley Booth; TJ Thyne as Dr. Jack Hodgins; Michaela Conlin as Angela Montenegro; Tamara Taylor as Dr. Camille “Cam” Saroyan; John Francis Daley as Dr. Lance Sweets

Guest Cast Pej Vahdat as Arastoo Vaziri; Billy Gardell as Bob Sayles; Conor Dublin as Elliot Lindbergh; Reggie Austin as James Perry; Paula Newsome as Kelly Bessette; Cheryl White as Mary Kay Sayles; Leonardo Nam as Nate Grunenfelder; Amy Gumenick as Paige Sayles; Ty Panitz as Parker Booth; Josie Davis as Paula Lindbergh; Rob Mayes as Trey Johnson