Rachel Reilly storms into Big Brother 27 as the mystery houseguest, bringing her signature sass and strategy. “Reality ...

Big Brother Season 27 premiered with its first episode on July 10, 2025. The CBS show features Julie Chen Moonves as the show host.

But in the meantime, here's what I learned from my conversations with the cast of "Foundation" — including stars Lee Pace, Jared Harris and Lou Llobell — about what you need to know going into the ...