The show will kick-off only two days after the latest civilian run of the reality show ends on Monday, August 13.
Channel 5 ordered a second run of Celeb Big Brother for 2012, following the ratings success of the Denise Welch, Michael Madsen and Frankie Cocozza series in January.
Duane Chapman aka Dog the Bounty Hunter, former EastEnders actress Cheryl Fergison, Sex, Lies And Rinsing Guys documentary star Danica Thrall and So Solid Crew's MC Harvey are among the housemates rumoured to be taking part.
Simon Cowell's ex Jasmine Lennard, comic Julian Clary and Corrie icon Julie Goodyear are other surprising names tipped to be taking part.
The Celebrity run will last 23 days and will be hosted by Brian Dowling.
Emma Willis will continue to host spinoff series Bit on the Side.
Watch Brian Dowling talking about Celebrity Big Brother: