According to IMDB/W.E.N.N., George Clooney may make a brief return to E.R. for the show’s final season. The series’ producer David Zabel is reportedly eager to get past and current E.R. characters, particularly Clooney’s Dr. Douglas Ross, for a one-off special to celebrate the show’s run. Even Anthony Edwards, whose character Dr. Mark Greene died of a brain tumor, is being sought for a return. Zabel explains, “There are ways to do it that we’ve thought about - even if it were like a lost episode from 1996.”