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.

Note: This program replaces the previously scheduled episodes of "In the Motherhood" and "Samantha Who?"

"Ugly Betty" stars America Ferrera as Betty Suarez, Eric Mabius as Daniel Meade, Tony Plana as Ignacio, Ana Ortiz as Hilda, Ashley Jensen as Christina, Becki Newton as Amanda, Mark Indelicato as Justin, Michael Urie as Marc, Judith Light as Claire Meade and Vanessa Williams as Wilhelmina Slater.

Guest starring are Daniel Eric Gold as Matt Hartley, David Rasche as Calvin Hartley, Derek Riddell as Stuart, Brennan Brown as Miles Foster and Adam Grupper as Dr. Erskine.

"Rabbit Test" was written by Chris Black and directed by Richard Heus.

"Ugly Betty" is broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1-channel surround sound and Spanish audio via SAP. A TV parental guideline will be posted closer to airdate.

This episode of "Ugly Betty" will be available on ABC.com the day after airing on the network for users to watch online.