As the super-long-running hospital drama “ER” prepares for its final episodes, some exciting news has made its way to the press – George Clooney will be returning before all is said and done.

SPL72754_012According to an inside source, John Wells, the show’s co-creator, is ordering a closed set in an attempt to maintain secrecy regarding the “Ocean’s Thirteen” actor’s involvement.

At this time, no one is sure just how much Clooney will be featured, as NBC and Warner Bros reps declined to comment, as did George’s spokesperson.

And for all of you “ER” fans out there, NBC executives extended the 15th and final season by four episodes last week, giving us all a little more drama before the end.