CBS officially announced the cast of Big Brother 10 this morning, confirming the cast list that was published online.

Host Julie Chen says in a video that introduces us to the cast (below) that this new season represents “Big Brother in its purest form.” Of course, Big Brother‘s idea of pure makes most of us gargle bleach, but that’s the fun part.

The AP interviewed the houseguests in sequester in a Studio City hotel (frighteningly close to where I’m staying for the next two weeks) and reports that “[t]his season’s contestants seem to be more aware of the repercussions of their actions from the outset.” We shall see.

Besides repeating everything she’s already said, executive producer Allison Grodner said that this season, which so far does not have a publicly announced twist, returns the show to its origins–at least before the producers stick their grubby little hands into it and screw it up, which she hinted will occur. “Every season had its unique twist. I think, in a way, going back to basics and having the cast be all strangers is part of the twist of ’10.’ Of course, there will be more,” she said.

Meet the new hamsters and watch them mug for the camera–they’re not good actors at all–in this CBS video: