As at July 2007, Harrison resides in New South Wales, Australia.
After spending nine days in the 'White Room', Harrison lost out in a vote by 2007 Big Brother Housemates, that saw Demet voted into the Big Brother house over him.
Harrison was one of the four 2007 'wild card' housemates that was isolated in a room labelled, 'The White Room'. The room was completely white, with white furniture and bedding. The only clothing they were permitted to wear were completely white. The person who stayed inside the White Room for the longest period would become a housemate and enter the house. When a person could not stand to be in the room any longer, they could press a button in the middle of the room and they would rejoin the general population. The button was red, providing the only colour in the room. The people in the White Room were unaware that they were being watched on a big screen by the real housemates albeit with no audio.
Harrison's family owned a fish farm in rural New South Wales when he was young, before moving to the city.
Harrison's occupations at the time of entering the Big Brother house was as a carpenter and a scuba diving instructor.
As at April 2007, Harrison resides in New South Wales, Australia.
Harrison: (on what he hoped to get out of the "Big Brother" experience) $1 million. I was in it to win it. I actually quit my job for this. I put to much on this. I have no idea what I'm going to do now.
Harrison: (asked if he was disappointed to go into the White Room instead of the "Big Brother" house) Yes. It wasn't really what I expected.
Harrison: (asked what the white room porridge tasted like) It's not porridge it's gruel. It's sugary. To make it worse they'd make it up with chunks and it was lukewarm. Demet even found a piece of fishing line in hers.
Harrison: (asked what he did in the White Room to keep himself entertained) Not much because Big Brother took away anything we invented. We ran laps.
Harrison: (his hopes of what lies after "Big Brother") A million dollars richer, hopefully [getting] a few endorsements after the show, and, of course, the big one - jumping the lines at the clubs!
Harrison: I love being the centre of attention. I love anything cheesy like lame poses, corny music and over-the-top fashion.