Robert De Niro flew in to play SNL's Robert Mueller last week because it's "my civic duty"

ETonline

"I said I'll make myself available. I consider it my civic duty to play that part," De Niro joked to ET. "So actually, this last one, I flew in, I was on a skiing trip with a few of my children, and I literally went from the airport to NBC to get ready to do it." ALSO: Sandra Oh had to explain SNL to her parents.