From ABC's official press release:
As Izzie goes through aggressive cancer treatment, she throws herself into planning Meredith and Derek's wedding, and Callie gets a visit from her disapproving father, on ABC's Grey's Anatomy
Guest starring Hector Elizondo (Pretty Woman, Princess Diaries
) and Amy Madigan (Field of Dreams
As she endures aggressive treatment for her cancer, Izzie throws herself into planning Derek and Meredith's wedding, Callie introduces Arizona as her girlfriend to her disapproving father, George excels in a trauma emergency when Alex freezes, and Owen seeks help with his PTSD, on Grey's Anatomy
, Thursday, April 23 (9:00-10:02 p.m., ET) on the ABC Television NetworkGrey's Anatomy
stars Ellen Pompeo as Meredith Grey, Patrick Dempsey as Derek Shepherd, Sandra Oh as Cristina Yang, Katherine Heigl as Isobel "Izzie" Stevens, Justin Chambers as Alex Karev, T.R. Knight as George O'Malley, Chandra Wilson as Miranda Bailey, James Pickens, Jr. as Richard Webber, Sara Ramirez as Callie Torres, Eric Dane as Mark Sloan, Chyler Leigh as Lexie Grey and Kevin McKidd as Owen Hunt.
Source: ABC(Image courtesy of ABC)