Big Brother Pictures

The top twenty candidates from previous Big Brother seasons will be revealed by Julie Chen on Wednesday, June 21 at 8PM ET/PT. Web voting will open after candidates are revealed starting at midnight ET/9PM PT. The polls will close on Wednesday, June 28 at 11:59PM ET/8:59PM PT. According to the CBS website, all twenty candidates will be present when Julie Chen announces the All-Stars houseguests on the Big Brother 7 season premiere, Thursday, July 6 at 8PM ET/PT, so fans will get to see the reaction of those who don’t make the cut.