brings a seasoned, menacing presence to the role. Unlike the flashier protagonists, his performance captures the cold, calculated nature of a cartel operative who has survived multiple regimes .

Restrepo has become a character actor of choice for directors needing authenticity. He rarely plays the hero; he plays the scarred veteran, the nervous accomplice, or the remorseful killer.

The character is based on the real-life Colombian drug trafficker Víctor Patiño Fómeque , who was known by the alias "La Fiera". Family Connection: In the show's narrative, he is the maternal half-brother of Álvaro José Pérez , better known as " Role in the Series

Fermín acts as a high-ranking hitman ( sicario ) and operator for "El Orejon" (a character based on the real-life drug lord Wilber Varela, alias "Jabón").

: He reprised the role in the film adaptation, as noted in the IMDb film credits .