Billy Crystal and Robin Williams. (Photo: Archive)
Marlo Thomas. (Photo: Archive)
Gabrielle Union. (Photo: Archive)
Jon Lovitz. (Photo: Archive)
Susan Sarandon. (Photo: Archive)
Hugh Laurie. (Photo: Archive)
Brooke Shields. (Photo: Archive)
Denise Richards. (Photo: Archive)
David Arquette. (Photo: Archive)
Rebecca Romijn. (Photo: Archive)
Reese Witherspoon. (Photo: Archive)
Charlie Sheen. (Photo: Archive)
Bruce Willis. (Photo: Archive)
Jill Goodacre. (Photo: Archive)
Anna Faris. (Photo: Archive)
George Clooney and Noah Wyle. (Photo: Archive)
Kristin Davis. (Photo: Archive)
Danny DeVito. (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!
