At a later eviction, the show said farewell to David, and then after three months in the house, Greg eventually walked away with the Big Brother prize money, which he shared with his brother as part of the deal.
Up to speed? Then we shall go on.
Since the 00s' reality TV show shot the brothers to fame, the pair, now 37, have gone on to carve very different paths for themselves.
Greg invested his share of the cash into property in Newcastle, including hotels and nightclubs.
The ex-reality star is now said to be worth a staggering $10m, according to a Daily Mail report.
His portfolio includes the King Street Hotel, The Argyle House and Greenroof Hotel.
"We were quite smart with what we did," Greg told a local publication in 2018.
Not much is known of David since he left the limelight.
While his brother has gone on to make millions, David is thought to be living in Queensland, according to reports.
The twins did reunite in 2008, for the finale episode of Big Brother, and then joined other contestants for the ACA Big Brother ten-year reunion in 2011.
