Married At First Sight season 18 has been one of the most highly-anticipated seasons of the series in years, but after seeing the first few episodes, Im worried about how many potential producer plants are in the cast. Throughout Married At First Sight history, viewers have watched the show along with the cast, who dont get a preview of the series theyve been a part of. While the viewers are unpacking the events as theyre seen on screen, the cast members are typically watching with an understanding that the story being shown is only a part of what they experienced.