I know I really felt the loss of Dr Mark Greene from ER in 2002. I sat and cried along with thousands of others around the world when the character slipped quietly into death. I cried with the same people when he was diagnosed with terminal cancer and cried again watching Elizabeth (Alex Kingston) try and go on without him. Dr Greene was, to me, a hugely integral character in teh success of ER in the early seasons. He was mentor, best friend, lover, father, doctor extraordinaire. From looking after his ailing father to marrying Elizabeth, Dr Greene did it all on the show and the show was and is better for having had the character there at all.
Keep the good ones coming!

I have watched doctors fall in love (Abby and Luca), doctors die (Mark Green), nurses have babies (Carol), doctors get stabbed (Carter)....oh man, there are so many episodes, so many sotrylines that have captivated myself and many others since the show first aired in 1994. The original cast are all gone now (Carter the last to leave) but the show still continues to dominate airwaves internationally. I wonder if Michael Crichton knew that the show would be as huge as it is. I knew it was something special when I watched the pilot episode. So action-packed I felt like I was looking everywhere and not seeing it all, wanting to watch it over and over and being devastated when the episodes finish. I still feel like that. ER is my tv addiction. Please keep it coming!