La Voz de Galicia characterised Berlin as a "cold, hypnotic, sophisticated, and disturbing character, an inveterate macho with serious empathy problems, a white-collar thief who despises his colleagues and considers them inferior". Actor Pedro Alonso described Berlin as "cruel, heroic, and funny at the same time" Although capable of
empathy, Berlin often did not show it and was "deeply human and deeply ardent", causing chaos in his interactions with others. Alonso attributed Berlin's popularity to the character's desire to live and "enjoy everything at the moment intensely", living "life as a fantastic dream [...] with great honesty, without abiding by conventions and morals". ==Development==