Selton Mello and Carol Abras dubbed their own voices for the English distribution of the series.
Selton Mello actually broke his thumb closing a taxi door 20 days before begin shooting.
The series follows closely real events, particularly with respect to famous people (who appear under alternative names but whose real-life counterparts are easily identifiable in Brazil). One artistic license was particularly controversial in Brazil: Jose Higino (the alternative name for former President Lula da Silva) speaks in a private conversation about the need to "staunch the bleeding" (estancar a sangria), in a reference to the large number of high-level people being investigated, arrested, or indicted by the Lava Jato operation. In reality, the phrase was captured in a wiretapped phone conversation being said by Senator Romero Jucá. The Senator at one point was the leader of the Government caucus in the Senate during Dilma Rousef's Presidency, but eventually changed position and supported her impeachment.
The first time the viewers see the character Janete Ruskov, the equivalent of former President Dilma Rousseff, she is rehearsing a speech about a new technology that will allow for "storing the wind". This is a nod to a rambling speech Ms. Rousseff gave at the United Nations in 2015 about the difficulties of implementing wind energy because of the impossibility of storing wind.
The video showed on the tablet of Ruffo's daughter is a famous fractal called "Mandelbrot Set". The beautiful patterns are generated by Complex Numbers and it's possible to zoom in forever.