Grande Fratello 12 was the twelfth season of the Italian version of the reality show franchise Big Brother.
On February 13, 2012, Alessia Marcuzzi communicated to viewers that, from that moment on, three former housemates (with the title of "Invaders") would re-enter in the competition with the aim of hindering the path of the current competing housemates towards final victory, namely, Patrick Ray Pugliese (GF4), Cristina Del Basso (GF9) and Ferdinando Giordano (GF10); in fact, they entered the 17th week of this edition.
Margherita Zanatta (GF11) revealed that she had been contacted before the start of the season by Endemol Italia to participate, as an "Invader" in the twelfth edition, but she refused the proposal: a few weeks before, also Guendalina Tavassi (GF11) had also declared that she had received the same proposal, but she then refused to be able to participate in the ninth season of L'isola dei famosi.
Alfonso Signorini, opinionist of the twelfth edition, in an interview he stated, a few days after the Grade Fratello 12 final, the following: "I believe that within Grande Fratello 12 there was the influence of a few call centers too many: otherwise it is not possible to explain how it is possible that Ilenia, with a fan club of 80,000 people who have not voted all but almost, may have lost to a certain Martina who has 10,000 fans.
Furthermore, Signorini, also in that interview, declared that he had doubts about the fact that Sabrina Mbarek, winner of the twelfth season, did not deserve, in his opinion, this title as Gaia Elide Bruschini, the runner-up, was greeted with a roar from the studio audience while the italian-tunisian coolly.