The Best Celebrity Guest Stars in Friends' History

Could this list BE any more iconic?

(Image credit: NBC)

The cast of Friends packed some serious star power. But some even bigger names made guest appearances on the show (looking at you, George Clooney). Throughout the show's 10 seasons, everyone from A-listers to up-and-coming actors stopped by Central Perk. There are the celebrities you totally forgot made a cameo on the series.