Billy Crystal and Robin Williams. (Photo: Archive)
Selma Blair. (Photo: Archive)
Jill Goodacre. (Photo: Archive)
George Clooney and Noah Wyle. (Photo: Archive)
Greg Kinnear and Aisha Tyler. (Photo: Archive)
Danny DeVito. (Photo: Archive)
Julia Roberts. (Photo: Archive)
Rebecca Romijn. (Photo: Archive)
Denise Richards. (Photo: Archive)
Alec Baldwin. (Photo: Archive)
Christina Applegate. (Photo: Archive)
David Arquette. (Photo: Archive)
Brooke Shields. (Photo: Archive)
Anna Faris. (Photo: Archive)
Morgan Fairchild and Jay Leno. (Photo: Archive)
Charlie Sheen. (Photo: Archive)
Bruce Willis. (Photo: Archive)
Kristin Davis. (Photo: Archive)
Marlo Thomas. (Photo: Archive)
Isabella Rossellini. (Photo: Archive)
Kathleen Turner. (Photo: Archive)
Hank Azaria and Paul Rudd. (Photo: Archive)
Gabrielle Union. (Photo: Archive)
Jeff Goldblum. (Photo: Archive)
Jason Alexander. (Photo: Archive)
Jon Lovitz. (Photo: Archive)
Sean Penn. (Photo: Archive)
Helen Hunt. (Photo: Archive)
Jim Rash. (Photo: Archive)
John Stamos. (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!
