Although they turned out to have been already prematurely leaked by what appears to have been a glitch on the show's official website, CBS has formally revealed the identities of the twenty former Big Brother houseguests that viewers will be able to vote into this summer's Big Brother 7: All-Stars house.

Now that the potential cast list, officially announced in Wednesday night's Big Brother All-Stars: America's Choice casting special broadcast, has been formally revealed, home viewers will be able to visit and vote for which potential houseguests they would like to see participate in this summer's All-Stars edition.

Viewer voting will continue until midnight ET on June 28, with the top three male and top three female vote-getters automatically becoming part of Big Brother 7: All-Stars' cast and the show's producers determining which six other potential houseguests will be part of this season's Big Brother house. During the week-long voting period, each potential Big Brother 7: All-Stars houseguest will be able to use "use any reasonable means" to do their own additional campaigning.

Although the voting will end on June 28, neither the public nor the potential houseguests will learn of the results until Big Brother 7: All-Stars premieres live on Thursday, July 6 at 8PM. During the premiere, all twenty finalists will gather outside of the house with their bags packed, after which Big Brother host Julie Chen will reveal which twelve finalists will be entering the house and which eight will be returning back to their normal post-Big Brother lives. "They'll be all packed and ready to go," Big Brother executive producer Alison Grodner explained during last month's casting special announcement.

Perhaps mindful of what happened during Big Brother's initial season in which viewers determined who would be evicted each week and quickly eliminated most of the more controversial houseguests from the competition, Grodner has acknowledged that a desire to ensure that the show ends up with a "right balance" that includes some of the show's more unpopular former contestants is behind the decision to only allow viewers to decide half of the season's cast.

"We're looking for a showdown," Grodner told Daily Variety last month. "You've got your Big Brother heroes and villains, and that's what's going to make for the best drama." The "good versus evil" theme will reportedly be reflected throughout the show, right down to an updated Big Brother house interior that will commemorate highlights of Big Brother's first six seasons.

Earlier this month, Big Brother 7: All-Stars' website briefly displayed a "Which of your favorite Big Brother contestants would you like to see compete again in Big Brother: All-Stars?" poll question, followed by what appeared to be twenty blank selection fields. However, although the poll options appeared blank when the website initially displayed, highlighting its fields displayed a list of twenty names that ended up being identical to the potential houseguests revealed on Wednesday night's Big Brother 7: All-Stars casting special. After presumably realizing their mistake and quickly taking the poll down, CBS, in an apparent attempt to discredit the accuracy of the first list, later briefly published a second poll that featured a second (fake) list of twenty names.

The twenty former Big Brother houseguests (nearly half of whom are from either Big Brother 5 or Big Brother 6) that viewers can attempt to vote into Big Brother 7: All-Stars' house are:

• Alison Irwin (Big Brother 4 first runner-up)
• Bill "Bunky" Miller (Big Brother 2 fourth runner-up)
• Dana Varela (Big Brother 4)
• Danielle Reyes (Big Brother 3 first runner-up)
Diane Henry (Big Brother 5 second runner-up)
• Erika Landin (Big Brother 4 third runner-up)
• George "Chicken" Boswell (Big Brother 1 fourth runner-up)
Howie Gordon (Big Brother 6 fourth runner-up)
Ivette Corredero (Big Brother 6 first runner-up)
James Rhine (Big Brother 6)
Janelle Pierzina (Big Brother 6 second runner-up)
Jase Wirey (Big Brother 5)
Jennifer "Nakomis" Dedmon (Big Brother 5 third runner-up)
Kaysar Ridha (Big Brother 6)
• Lisa Donahue (Big Brother 3 grand prize winner)
• Marcellas Reynolds (Big Brother 3 fourth runner-up)
Michael "Cowboy" Ellis (Big Brother 5 first runner-up)
• Mike "Boogie" Malin (Big Brother 2)
• Monica Bailey (Big Brother 2 second runner-up)
• Will Kirby (Big Brother 2 grand prize winner)