Housemates
Over the 100 day season, a total of 24 housemates entered the Big Brother House, twelve during the opening night and a following twelve at various points throughout the series. On the opening night, viewers were given the opportunity to vote in two additional housemates, one male and one female, from a selection of six potential housemates, while the remaining four would be isolated in the White Room. The following night, Susannah and Zoran entered the house along with Billy, or Mr. X, whose purpose in the House was to jeopardise Andrew and Hayley's secret relationship challenge, but was not officially recognised as a legitimate housemate until Day 16. Demet, one of the four White Room Wildcards, was voted into the House by the housemates on Day 11, while Nick entered on Day 18 as the winner of the Starburst Golden Key promotion. A further four Intruders followed, Daniela and Laura on Day 31 and Michelle and Zach on Day 50. In a promotion for the upcoming season of Australian Idol, Kyle Sandilands entered the House as a celebrity guest with a mission from Big Brother to encourage housemates to "be themselves," but left the House early due to a severe migraine.
Read more about this topic: Big Brother Australia 2007