ER will wrap this year with a 2 hour finale.  EP David Zabel says: “We have a really good storyline for every [major] character from the past to show [the actors] what we want to do,” he said.

 Anthony Edwards character (Dr. Mark Greene) died of brain cancer in May 2002 but will return in flashback scenes. Laura Innes (Dr. Weaver), Paul McCrane (Dr. Romano) and Noah Wyle (Dr. John Carter) have also agreed to appear. 

Clooney’s publicist said the star had already declined the offer.  “He is busy making movies,” he said.

End Of Show suspects he may change his mind.  If they offer him a load more money.