Housemates
During the first week of the season, 15 housemates were added to the house. 12 went into the house on opening night while viewers could vote in two extra housemates, one male and one female from a group of six. The following night, Susannah and Zoran entered the house along with an extra housemate, Billy who was added to put Hayley and Andrew's secret relationship challenge into jeopardy. On Day 11, Demet entered the house after being voted in by the existing housemates. Nick entered the house on Day 18 as the winner of the Starburst Golden Key promotion. A further two female housemates, Daniela and Laura, later entered as Intruders on Day 31. Two further Intruders Michelle and Zach, entered on Day 50. On Day 84, a Celebrity guest known officially as a Housemate: Kyle Sandilands entered the house with a mission from Big Brother. The total number of housemates to enter the house is 24.
Read more about this topic: List Of Big Brother Australia Housemates (2007 Series)