Viewers certainly know from the various flashbacks that Berlin has had quite the turbulent love life.
He was married five times, the last of which with Tatiana (Diana Gómez), but is now disillusioned by love and relationships, alluding that his last relationship ruined his ability to trust in love.
Fans are now convinced that is because Tatiana cheated on him with his son from a previous marriage, played by Criado.
The three actors were seen filming scenes together in Denmark, so it looks like confirmed that Criado’s character will be linked to either Berlin or Tatiana.
Money Heist seasons 1-4 are available to stream on Netflix now.