1. Michael Cera - This Is The End
The only cameo on the list to be playing themselves, Cera turned up along with other familiar faces in this entertaining apocalyptic comedy. Within fifteen minutes he destroys any angelic persona some deemed him to have beforehand. Snorting copious amounts of cocaine, smacking Rihannas bum, and pissing off pretty much the entire party at Casa James Franco, Ceras antics come out of nowhere when compared with previous roles. Thats the secret to what is a fantastic cameo, finished off by impalement on a street lamp. Classy way to go.