• Season 6 Episode 5
  • Invasion

  • Airdate:15.10.2009.

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.

series regulars:

    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
    Jessica Capshaw as Arizona Robbins.

guest cast:

    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
    Hector Elizondo as Mr. Torres.

written by:

Mark Wilding

directed by:

Tony Phelan