Posted by Dustin on 04.20.2009 at 4:58 pm

In this installment we have the season finale of “Brother’s and Sister’s” and the 100th episode of “Grey’s.” Also the return of “Ugly Betty!” a week early (but the loss of “Samantha Who” as reported previously).

BREE WILL STOP AT NOTHING TO GET WHAT SHE WANTS, ON ABC’S “DESPERATE HOUSEWIVES”

“Marry Me a Little” – Every day is a masquerade on ABC’s “Desperate Housewives,” SUNDAY, MAY 10 (9:00-10:01 p.m., ET). Bree goes to extremes to hide her true intentions from Orson; Susan and Jackson put on an act for the authorities; Lynette is shocked at the lengths Tom will go to in order to look younger; Katherine masks the truth from Mike, afraid to lose him; and Dave is on edge when he learns a key witness to his misdeeds surfaces.

Gale Harold guest stars as Jackson Braddock.

THE WALKER FAMILY LEARN THAT THEY MAY NEVER SEE TOMMY AGAIN, ON THE SEASON FINALE OF ABC’S “BROTHERS & SISTERS”

“Mexico” – When the Walker family reaches out to Tommy, they’re devastated to find that he may be unwilling to accept their help. Meanwhile, Robert and Kitty reach a crossroads in their marriage that they may not be able to successfully navigate; Justin makes plans for the future, with or without Rebecca; and Saul makes a shocking admission about Ryan Lafferty’s mother, on the season finale of “Brothers & Sisters,” SUNDAY, MAY 10 (10:01-11:00 p.m., ET) on the ABC Television Network.

Guest starring are Ken Olin as David Caplan, Luke Grimes as Ryan Lafferty, Mario Quinonez Jr. as Eduardo, Randee Heller as Karin, Brian Lloyd as Sven, Tom Lommel as Karl, Frank Gallegos as Pablo, Chaim Jeraffi as the retreat doctor and Martin Morales as the bartender.

CASTLE CONTENDS WITH BECKETT’S EX-BOYFRIEND, A HANDSOME FBI AGENT INVESTIGATING THE DISAPPEARANCE OF A LITTLE GIRL, ON ABC’S “CASTLE”

“Little Girl Lost” – When a two-year-old girl is discovered missing from her home, Beckett is called in to assist with the investigation only to discover that the FBI agent in charge is, in fact, her ex-boyfriend. The two of them try to put aside their unresolved feelings as they race to find the girl, but when Castle inserts himself into the investigation, competition quickly heats up for Beckett’s attention, on “Castle,” MONDAY, MAY 4 (10:02-11:00 p.m. ET) on the ABC Television Network.

Guest Cast: Bailey Chase as Will Sorenson, Judy Reyes as Theresa Candela, Julian Acosta as Alfred Candela, Francis Capra as Juan Restrepo and Todd Waring as Dave Ellers.

THE SUAREZ FAMILY MEETS MATT’S BILLIONAIRE DAD, AND WILHELMINA WONDERS — IS BABY WILLIAM REALLY HERS? — ON ABC’S “UGLY BETTY”

“Rabbit Test” – The Suarez family gets an invitation to meet Matt’s famed billionaire dad, Calvin Hartley (guest star David Rasche), at his legendary Easter Egg hunt. While Betty sees this as a chance to get closer to Matt, Daniel seizes the opportunity to get Mode a bailout. Meanwhile Wilhelmina suspects that little William might not be her biological son, on ABC’s “Ugly Betty,” THURSDAY, APRIL 30 (8:00-9:00 p.m., ET) on the ABC Television Network.

BABY WILLIAM IS KIDNAPPED IN THE MIDST OF MODE’S BAILOUT ATTEMPTS, ON ABC’S “UGLY BETTY”

“The Born Identity” – Just as it looks like billionaire Calvin Hartley (guest star David Rasche) is going to give Mode the bailout it needs so the magazine won’t go under, baby William is kidnapped – and Betty is dragged into the ensuing drama. Meanwhile Archie (guest star Ralph Macchio) asks Hilda to be part of his latest political campaign, on ABC’s “Ugly Betty,” THURSDAY, MAY 7 (8:00-9:00 p.m., ET) on the ABC Television Network.

Guest starring are Daniel Eric Gold as Matt Hartley, David Rasche as Calvin Hartley, Derek Riddell as Stuart, Ralph Macchio as Archie Rodriguez and Alec Mapa as Suzuki St. Pierre.

IT’S MEREDITH AND DEREK’S WEDDING DAY, ON ABC’S “GREY’S ANATOMY”

“Grey’s Anatomy” Celebrates its 100th Episode with an Event No Fan Should Miss

“What a Difference a Day Makes” – As Meredith, Derek and all of their friends prepare for the big wedding, a group of college students, injured in a car crash as they were heading to their graduation ceremony, is admitted to the ER. Meanwhile, Izzie fears the worst when she begins experiencing familiar symptoms, on “Grey’s Anatomy,” THURSDAY, MAY 7 (9:00-10:02 p.m., ET) on the ABC Television Network.