OK, so we didn't keep you waiting all that long to find out whether Matt Stone was on the same list as his best buddy Trey Parker. They're both officially listed has having $500m, but Stone has a few bags of change more than Trey, and that sees him come in a little higher up.
It's hard to separate Stone's successes from Parker's, as they've largely been achieved together. Neither of them seems to want or need to work away from the other (and why should they? Look at all the money they've earned!), and they remain committed to each other for the long term, founding a film production company called 'Important Studios' together in 2013 so their work can continue. Their next big project is rumored to be a film adaptation of 'The Book of Mormon' and if it enjoys anything like the same success as the musical, it will see both men get even richer.