Alliance

An Alliance is a duo or group that are loyal to each other in Big Brother. 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.

Big Brother 2

 * Chilltown

Big Brother 3

 * Chiara Jude Berti & Roddy Mancuso, Eric Ouellette & Lisa Donahue
 * Danielle Reyes & Jason Guy

Big Brother 4

 * Elite Eight
 * Girl Power
 * Three Stooges

Big Brother 5

 * Four Horsemen
 * Pinky Swear Alliance

Big Brother 6

 * The Friendship
 * Sovereign Six

Big Brother 7

 * Chilltown
 * Sovereign Six
 * The Legion of Doom

Big Brother 8

 * Mrs. Robinson Alliance
 * Late Night Crew

Big Brother 9
Team Christ

"The Evil Doers" (What Natalie called them)

Big Brother 10

 * The Renegades

Big Brother 12

 * The Brigade

Big Brother 13

 * Newbies
 * The Regulators
 * Veterans

Big Brother 14

 * Chilltown 2.0
 * Silent Six
 * Team Touché
 * The Quack Pack

Big Brother 15

 * The Blonde-Tourage
 * The Moving Company
 * The Mom Squad
 * The Goof Troupe
 * Tenexas
 * Young Grasshoppers