GREY’S ANATOMY “Invasion” Season 6 Episode 4

GREY'S ANATOMY Invasion (4)

Watch a sneak peek of the GREY’S ANATOMY “Invasion” Season 6 Episode 4 airing Thursday October 15 at 9:00 p.m., ET.

Episode Synopsis: GREY’S ANATOMY “Invasion” Season 6 Episode 4 (Spoilers) – The residents of Seattle Grace and Mercy West vie for surgeries and their careers as day one of the hospital merger begins. Meanwhile, Arizona stands by an enraged Callie when her father, Mr. Torres, employs a priest to help convince her to date men, and Izzie experiences the brunt of her new surgical competition, on “Grey’s Anatomy,” THURSDAY, OCTOBER 15 (9:00-10:01 p.m., ET) on the ABC Television Network

“Grey’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, 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, Kevin McKidd as Owen Hunt and Jessica Capshaw as Arizona Robbins.

Guest starring Robert Baker as Charles Denman, David Bowe as Don, Sarah Drew as April, Alexie Gilmore as Sarah, Jack Gwaltney as Frank, J.P. Pitoc as Billy, Brandon Scott as Intern Ryan, Kathleen Wilhoite as Leslie, Jesse Williams as Jackson, Nora Zehetner as Reed Adamson, Bruce French as Father Kevin, Freda Foh Shen as Missy Grant, with Hector Elizondo as Mr. Torres.

Read all our Grey’s Anatomy coverage.