George Clooney by Foc Kan/WireImage.com
Anthony Edwards wants him back, the producers want him back, but the chance of George Clooney returning to ER for its 15th and final season remains nebulous, with conflicting statements from the actor and his publicist emerging in recent days.

"I've never been asked or approached by anyone from the show about doing an episode of ER," Clooney told Extra on Wednesday.

Yet, reported that producers have storylines all set for the return of Clooney as Dr. Ross, Julianna Margulies as Carol and Eriq La Salle as Dr. Benton. Executive producer David Zabel told Will Keck that he's "optimistic that we might be able to get them all. We have a really good story line for every [major] character from the past to show [the actors] what we want to do."

For now, ER fans will have to settle for the flashback returns of Anthony Edwards, playing the beloved Dr. Mark Greene, and Noah Wyle as Dr. Carter.

Would you be miffed if Clooney won't be scrubbing in for ER's final season? - Erin Fox

POLL: Will you think less of Clooney if he's a no-show? Vote here.

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" Want to brush up on your medical jargon? Use our Online Video Guide to watch episodes of ER