Billy Crystal and Robin Williams. (Photo: Archive)
John Stamos. (Photo: Archive)
Susan Sarandon. (Photo: Archive)
Hank Azaria and Paul Rudd. (Photo: Archive)
Hugh Laurie. (Photo: Archive)
Isabella Rossellini. (Photo: Archive)
Over the years we saw many famous faces guest starring on Friends, but every time we rewatch the iconic 90s sitcom, we remember many more surprising celebrity cameos. Here are 40 of the best ones!
