Jeremy Piven's hair
Watched this classic for the first time in a while and as a watcher of "Entourage", I was a bit surprised to see how little hair Jeremy Piven had in this - and how old he looked as a result. On "Entourage", which ran from 2004-2011, he looks like he's in his late 30's/early 40's, and on "PCU", which was in 1994, he looked like he was in mid-40's.
I guess hair plugs or whatever he got done to give him a full head of hair really paid off.