Anthony Edwards Goes Greene

Six years after leaving the emergency room drama, ER, actor Anthony Edwards revisited the set to reprise his role as Dr. Mark Greene in a series of flashbacks for the show's final season, according to the Associated Press.

"It was really like going back to high school, in the best way. It was like going back to your favorite class and having your favorite teacher. . . . It took about a half an hour - and after about a half an hour, I really felt like I'd never left," Edwards said.

Edwards's character died of a brain tumor at the end of the 2002 season. He appears in flashbacks alongside Dr. Kerry Weaver, played by Laura Innes, and Dr. Robert Romano, played by Paul McCrane.

Edwards said his character had a passion for medicine and he enjoyed reprising the role.

"When you get on an airplane, you hope that the pilot really loves flying - I think that's what Greene had. You do want to go to a hospital and have a good doctor who loves being a doctor there."

Edwards also said he hopes actor George Clooney will return to the show for a final cameo as Dr. Doug Ross. Clooney initially declined the invite to appear in the series.

"I would never judge anybody else. All I can do is share that I had a good experience, and I hope that whoever gets asked and has the opportunity does do it," Edwards said.