George Clooney didn’t play any of his famous pranks on the set of ER when he returned to film his final episode.

“There were none,” his co-star Julianna Margulies told Usmagazine.com.

“We shot everything in two days. We had no time. He was on a film schedule. I was coming from New York and I had a baby to get back to, so there was no time for pranks.”

“It was a lovely experience – just going back,” said Julianna, who returned as Carol Hathaway in the episode.

“Some of the crew had been there since the beginning and being on the set again and working with John Wells who directed and wrote the episode we did, it was like coming home. It felt really good.”

“You pick up a slice of their life now,” she said. “It’s very satisfying.”