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/ Source: TODAY
By Ree Hines

Television's longest-running medical drama has been away from the small screen for seven years, but "ER" fans still hold out hope for a reunion one day.

As it turned out, Tuesday was that day. Sort of.

Jimmy Kimmel promised his late-night audience an "ER" reunion, and he definitely delivered on part of that promise in a skit featuring Doug Ross himself, George Clooney.

But when Dr. Ross needed a scalpel, he didn't have much help at County General Hospital.

"Julianna Margulies?" a seemingly confused Clooney asked.

"She's filming 'The Good Wife,' so she couldn't make it," Kimmel told him.

MORE: Time for a checkup: As 'ER' turns 20, our favorite docs then ... and now

Kimmel offered excuses for all the missing stars: Eriq La Salle? "Jury duty." Noah Wyle? "Taco Tuesday." And Anthony Edwards? Well, his character died a long time ago. Also, "he's at Soul Cycle."

But someone was willing to make a house call and help out — or rather a "House" call.

“E.R.” Cast Reunion with George Clooney and Jimmy Kimmel
“E.R.” Cast Reunion with George Clooney and Jimmy KimmelYouTube

"I was not technically on ER," Hugh Laurie said as he entered the scene.

"Well, close enough," Clooney shot back.

Soon enough both stars where shouting out medical-sounding gibberish over their ailing patient, Kimmel.

MORE: George Clooney helps his parents adopt Nate, a rescued dog no one else wanted

For a while, it looked like they were losing him, but then Laurie remembered something from their old "TV medical school" days: CPR to the beat of The Sugarhill Gang's "Rapper's Delight" can always save the day.

Hearing George Clooney rap certainly saved ours!

Follow Ree Hines on Twitter.