According to producer Allison Grodner, the “right balance” of houseguests is important.  As this is the Allstars series, people are expecting drama. Grodner admits to wanting a Good versus Evil mix in the house to keep things extra interesting.

How the voting works and where to vote:

According to producer Allison Grodner, the “right balance” of houseguests is important.  As this is the Allstars series, people are expecting drama. Grodner admits to wanting a Good versus Evil mix in the house to keep things extra interesting.  Because of this, viewers will only be allowed to vote for 6 of the 12 contestants: 3 males and 3 females.  Viewers can vote online at http://www.cbs.com/primetime/bigbrother7/ On CBS Wednesday, June 21 at 8PM ET/PT, Julie Chen will unveil the top 20 candidates from seasons past. Web voting opens right  after the show at midnight ET/9PM PT. The polls close Wednesday, June 28 at 11:59PM ET/8:59PM PT.