And there's hunky Federico, a 23-year-old waiter from Glasgow.
Channel 4 did well keeping them secret. Although papers leaked the identities of 12 possible housemates, they turned out to be the wrong ones.
The real 12 will now start living the BB life.
The housemates will have to do a live challenge every Saturday night to win treats. And they'll have to nominate two people to face the public vote every week.