After accosting the actor at a polo event, the royal brothers quizzed Mr LeBlanc about when the show would make a return.
He said at the time: “They asked me when the Friends reunion was.
“I said, ‘Tomorrow? I don’t know. Whenever you want it to be!”
Appearing on Conan O’Brien’s TBS talk show in 2015, Mr LeBlanc joked he had to tell the brothers to “f* off”.
He said: “I went to this exhibition Polo match this one time and the princes were there, they were playing. After there was a big line to meet them…
“So I went and I got in line and met the princes – both Prince William and Prince Harry.
“All they want to know is when is the Friends reunion. That’s all they wanted to know about…
“I told them to f**k off.”
However, Mr LeBlanc appeared on the show later the same year to explain: “It was a joke. I never said that.
“They’re bigger than me … and that would be rude.’”
Mr LeBlanc also praised Harry and William and added they were “really cool”.
He told Mr O’Brien: “They were really cool.
“Then actually I was in a bar one time and Harry was there, and I actually ended up sitting on the same table as him.
“He’s a lot of fun. Yeah, a lot of fun.”