Title: It’s the End of the World (Season 2, Episode 16) & As We Know It (Season 2, Episode 17) Original Air Dates: February 5 & February 12, 2006 Network: ABC Showrunner: Shonda Rhimes Key Characters: Meredith Grey (Ellen Pompeo), Dr. Miranda Bailey (Chandra Wilson), Dr. Derek Shepherd (Patrick Dempsey), Dr. Preston Burke (Isaiah Washington), Dr. George O’Malley (T.R. Knight), Nurse Tyler (Moe Irvin), and Dylan Young (Kyle Chandler) – the bomb squad leader. 1. Episode Summary This two-part event is widely considered one of the most suspenseful and critically acclaimed story arcs in the series. The central crisis involves a patient, Jason (portrayed by actor Christina Ricci in a memorable guest role), who arrives at Seattle Grace Hospital after being impaled by a rocket-propelled grenade (RPG) that did not detonate.