A Fazenda 6

A Fazenda 6 was the sixth season of the Brazilian reality television series A Fazenda, which began June 23, 2013, with the season finale airing September 29, 2013 on the Record television network.

This season is part of a millionaire contract signed in 2011 between Strix Television and Record which guaranteed the show's rights until 2019.A Fazenda 6 was officially confirmed on August 29, 2012, during the season finale of A Fazenda 5.

Britto Junior reprised his hosting stints for the show. Cris Couto was replaced by journalist Juliana Camargo (from Fazenda de Verão) as the sponsored competitions host. Gianne Albertoni made her debut as the show's social media correspondent, replacing Celso Cavallini.

The grand prize for the winner was R$2 million without tax allowances, with a brand new car offered to the runner up. Model Bárbara Evans won the competition over parliamentary adviser & lawyer Denise Rocha and actor Marcos Oliver with 54.87% of the final vote.

Pre-production started in February 2013. Record began casting for A Fazenda 6 once filming for Fazenda de Verão (Summer Farm) was completed.

The season featured sixteen new celebrities. Among them are three celebrities who are relatives of past contestants: Bárbara Evans is the daughter of TV host Monique Evans (from seasons 3 and 4), Mateus Verdelho is the ex-husband of model Dani Bolina (from season 4) and Márcio Duarte is the twin brother of singer Vavá (from season 5).

Below is biographical information according to the Record official site, plus footnoted additions.
(ages stated are correct at the start of the contest)

Since Season 5, contestants compete to win the Key Power each week. The Key Power holder is the only contestant who can open the mystery box located at the Farm. However, opening the box will unleash either a good consequence or a bad consequence at the nomination process. The Key Holder's choice is marked in bold.

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Wikipedia