The most popular pick, handsdown, of who the mystery guest is would be none other than Rachel Reilly. She already made two appearances on the reality show, and won season 13, but she could be back for more. What gave it away for fans was a license plate that had the dates of July 2011.

Popular reality show “Big Brother” premiered this week, featuring two Texas residents who say they are up for the challenge.

With a new season of "Big Brother" starting tonight, who are the contestants entering the house? Meet the Season 27 houseguests vying for the $750,000 prize.

The houseguests of Big Brother 27 have been announced, and before you tune into the special premiere on Thursday, July 10, you should get familiar with the cast — including those from the New Jersey-New York metro area. Here are the Big Brother 27 houseguests with regional ties.

Big Brother has unveiled a new cast of scheming players, and teased the mysterious returning alum. We have a theory!