Okay, last weeks answers are-
Scruffy was Ashton Kutcher
Eddie Murphy's discovery was Chris Rock
Iconic Teenager was James Dean
and No longer in the Pitts was Jennifer Aniston
This guy below is probably not so recognizable, he's more famous for being behind the camera, but he appears in a rather kooky ad at the moment for the Commonwealth Bank, which should give away his identity to all the aussies.