The “Big Brother” 27 secret accomplice twist is already driving fans wild. From edits to behavior, here’s who they think is behind it all.

Adrian Rocha, a carpenter from San Antonio, joins the Big Brother 27 cast and opens up about balancing logic and emotion in a competitive environment.

"Big Brother" airs from 8-9:30 p.m. ET Sunday. Sunday's episode will last 90 minutes, from 8-9:30 p.m. ET. In addition to ...