Who does he play? DEA agent Javier Pena helped to bring down Pablo, and has now set his sights on the Cali Cartel.
Where have I seen him before? Pena knows good TV. He had recurring roles in The Good Wife, Game of Thrones and The Mentalist, as well as of small parts in Buffy the Vampire Slayer, Homeland and Nurse Jackie.
Chris Feisti (Michael Stahl-David)
Who does he play? An inexperienced DEA agent who has been called up to join the hunt for the Cali Cartel.
Where have I seen him before? In 2016, Stahl-David starred alongside Christian Bale and Charlotte LeBon in The Promise.
Daniel Van Ness (Matt Whelan)
Who does he play? Another young buck who joins the Cali Cartel case.
Where have I seen him before? This is his first major role.
Narcos: season 3 arrives on Netflix on Friday 1st September