Here are some pics that were shared on Twitter of Sandra Oh and the rest of the cast at the celebration:
Today is the day! Shooting begins on the 200th episode of GREYS ANATOMY. A little cake, a sip of champagne, and lots of jaw dropping drama!
— Tony Phelan (@TonyTphelan) August 19, 2013
|"The cast and crew gather to take the commemorative photo -|
first we all whipped out our phones and started" snapping! - @TonyTphelan