David Schwimmer says he found fame "painful".
The Friends star rocketed to international acclaim when he starred as Ross Geller in the TV series but admits he never quite got to grips with fame and success.
He said: "I remember very well when celebrity first came to me. It was not something that made me comfortable. It was almost painful. I didn't like being treated differently than who I was.
"I just didn't respond well to it. I didn't understand why people were treating me as if I were special. I found that painful because I hadn't changed. I didn't like the idea that someone could suddenly get special treatment for doing nothing other than being on TV."