Alliance Big Brother Gameplay Description A group of houseguests that pledge to work together. Appearance(s) Big Brother 2 (US) - onwards

Big Brother Canada 1- onwards - onwards- onwards

Anis a duo, trio, or group that is loyal to each other in. The alliance works on taking themselves further into the game through winning competitions and staying safe with each other, often taking out members of the opposite alliance.

These groups can prove to be very dominative and can seize control in a game if they manage to get a majority. Many times, members of an alliance will "defect" in order to increase their placings or if they feel betrayed by members of an alliance.

They only appear in the Big Brother U.S. and the Big Brother Canada versions of the show.