Sarah Michelle Gellar, ""Survivor"" Castaway Lisa Keiffer, How to Throw a Halloween Party

Actor Frankie Muniz; actor Patrick Wilson (""The Phantom of the Opera""); actors Justin Bruening and Alexa Havins; designer Genevieve Gorder; 12-year-old jump-rope champion Tori Boggs.

Model Heidi Klum; ""The Amazing Race"" contestants Lori and Bolo; chef Bill Granger; zoologist Jarod Miller; actor Richard Thomas.

Actor Jamie Kennedy (""Son of the Mask''); chef Rachael Ray; Tyler Hilton performs; New Style, New Smile Makeover; countdown to the Oscars.

Actor Matthew Fox (""Lost""); actress Valerie Bertinelli; Harry Winston spokeswoman Carol Brodie talks about Oscar jewels; New Style, New Smile Makeover; countdown to the Oscars.

NASCAR driver Jeff Gordon; singer Naomi Judd; New Style, New Smile Makeover; countdown to the Oscars.

Joan Rivers talks about the Oscars; actress Brenda Strong (""Desperate Housewives""); a fired ""Apprentice""; New Style, New Smile Makeover; countdown to the Oscars.

Duchess of York Sarah Ferguson; actress Reiko Aylesworth (""24""); chef Lidia Bastianich; Andrea Bocelli performs.

Actor Patrick Dempsey (""Grey's Anatomy""); actress KaDee Strickland (""Fever Pitch""); chef Tyler Florence; a fired ""Apprentice.""

Talk-show host Montel Williams; chef Sharon Lebewohl cooks with Tony; author Shauna Fleming (""A Million Thanks""); actress Kelly Rowan (""The O.C."").

Actor David Duchovny (""House of D""); actress Jaclyn Smith; ""American Idol"" contestant Anwar Robinson; Olive Garden chef Paolo Lafata; Race to Erase MS event; Tony's money booth.

Actress Rosie O'Donnell (""Riding the Bus With My Sister""); Tony plays Principal for a Day.

Actress Cynthia Nixon (""Warm Springs""); show host Tom Bergeron (""America's Funniest Home Videos""); actress Lesley Ann Warren; a fired ""Apprentice""; Dr. Gadget.

""American Idol"" judges Paula Abdul and Randy Jackson; actor Billy Crudup (Broadway's ""The Pillowman""); chef Rachael Ray; ""Survivor: Palau"" castoff.

Four guests: Lorraine Brocco, Dean Cain, Beth Murawsky (Tony's Rome Surprise at Grand Valley State University in Michigan), and Hunt Family Fiddlers (7).

Actress Camryn Manheim (""Elvis""); actress Elisha Cuthbert (""House of Wax""); journalist Robin Roberts; Hunky Handyman Search.

Actress Priscilla Presley; actor Michael Vartan (""Alias""); chef Rachael Ray; Hunky Handyman Search.

Actress Vanessa Marcil (""Las Vegas""); film critic Richard Roeper; numerologist Glynis McCants.

Actor Billy Crystal; chef Rocco DiSpirito; former ""American Idol"" contestant Anthony Fedorov.

Actor Jon Cryer (""Two and a Half Men""); actor Ricardo Antonio Chavira (""Desperate Housewives""); actress Jennie Garth; clips from ""All My Children.""

Actress Nicolette Sheridan (""Desperate Housewives""); journalist Elizabeth Vargas; actor Scott Wolf; financial adviser Suze Orman.

Actor James Denton (""Desperate Housewives""); show host Tom Bergeron (""America's Funniest Home Videos""); actress Katherine Heigl (""Grey's Anatomy"").

Show host Tom Bergeron (""America's Funniest Home Videos""); cooking with NFL player Jerome Bettis; actress Diane Farr; actor Vincent Irizarry; New Smile, New Style Makeover.

Journalist Joan Lunden; actor Scott Bailey; New Smile, New Style Makeover; winner of the Pillsbury Kids Bake It Fun contest, Landre Griffin.

Actor Denis Leary; New Smile, New Style Makeover; chef Tony Tammero; actress Alexa Havins; music group Lifehouse.

Singer Kelly Osbourne; actor Hal Sparks; New Smile, New Style Makeover; workout with Nikki Kimbrough.

""Dog Whisperer"" Cesar Millan; New Smile, New Style Makeover; Tae Bo for children with Billy Blanks.

Actor John Lithgow; actor Josh Peck; CEO Michael Eisner, the Walt Disney Company.

Actor Anthony Michael Hall; actress Sharon Case; chef Sam Marvin; guitarist John Pizzarelli.

TV personality Nancy Grace; Olive Garden chef; actor Kevin Connolly; Tony's band.

Actor Kevin Dillon; singer Robert Goulet; journalist Maria Bartiromo; singer Jo Dee Messina.

Actress Mo'Nique; actor Daniel Sunjata; volleyball players Kerri Walsh and Holly McPeak; restauranteur Donatella Arpaia; actress Annasophia Robb.

""Desperate Housewives"" cast: Teri Hatcher, Nicollette Sheridan, Marcia Cross, Jesse Metcalfe and Ricardo Antonio Chavira.

Cast of ""Who's the Boss?"": Alyssa Milano, Judith Light, Katherine Helmond and Danny Pintauro.

Actor Ray Romano; actor Kevin James; actor Kelsey Grammer; actor Jason Alexander; actor Jim Belushi.