|Big Brother Brazil 18|
|Series Run||January 22, 2018 - April 19, 2018|
|Prize Money||R$ 1.5 million|
|Previous Series||Big Brother Brazil 17|
Big Brother Brazil 18 is the upcoming eighteenth season of Big Brother Brazil.
The cast was revealed on January 18, 2018, one-by-one during commercial breaks on Rede Globo. Online, a round-table led by Big Brother Brazil 13 winner Fernanda Keulla to discuss the new housemates with past housemates. The new housemates would also be interviewed by Big Brother Brazil 17 runner-up Vivian Amorim in sequester as they would be revealed. These interviews were held live from the sequester hotel and also were shown online.
- Project DNA: In a modified version of the Project DNA twist, an entire family will move into the house on Day 1. The entire family consists of father Aryton, mother Eva, daughter Ana Clara and cousin Jorge Lima. However, the fans will vote for two members of the family to stay, thus evicting the other two family members.
- Two Contestants Play As One Houseguest: The two family members that were chosen to stay, TBA and TBA Lima, would compete in competitions every other week beginning with TBA and would only get to share one vote.
- Power of Veto: Similarly to the American and Canadian versions of the game and to replace the Power of Immunity competition from previous seasons, the Power of Veto allows it’s holder to veto one of the nominees. However, there are differences such as:
- The Power of Veto competition is played before the nominations are made.
- The veto holder is not allowed to veto any nominees nominated prior to the nomination ceremony (such as nominated by a twist).
- The HOH is not allowed to play in this competition.
|Week 1||Week 2||Week 3||Week 4||Week 5||Week 6||Week 7||Week 8||Week 9||Week 10||Week 11||Week 12|
|Day 1||Day 7||Finale|
|Ana Clara||Ineligible||Diego||Diego||Ana Paula||Nayara|
|Breno|| Ineligible||Gleici||Caruso||Ana Paula||Gleici|
|Gleici|| Ineligible||Diego||Ana Paula|| Saved|
|Jessica|| Ineligible|| Vetoed|
|Lucas|| Ineligible||Gleici||Gleici|| Ana Clara|
|Mahmoud|| Ineligible|| Ana Paula|
|Ana Paula||Ana Paula||Caruso|
|Paula|| Ineligible||Patrícia||Ana Paula||Ana Paula||Diego|
|Wagner|| Ineligible||Jessica||Mahmoud||Mahmoud|| ’’Saved’’|
|Ana Paula|| Ineligible||Jessica||Mahmoud||Mahmoud|| |
|Jaqueline|| Ineligible||Gleici|| Ana Clara|
|Mara|| Ineligible||Caruso|| |
|Key:||HOH||Nominated||Immune||POV||POI||Saved: Saved by Immunity Winner(s)||Vetoed: Vetoed Post-Nominations||Twist Holder||Evicted|
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