The One with all the Hindsight.
It's safe to say that Friends was a pretty star-studded affair, with Hollywood cameos from the likes of Robin Williams to Bruce Willis to Reese Witherspoon.
But for every big name who humiliated Chandler (remember that Julia Roberts episode?) or gave Rachel a tongue-lashing (Hugh Laurie, your cameo was glorious), there was a star-in-waiting who, post-Friends, blew up in a big way. Do you remember all of these?