Poison

Poison is a sicario in the Guadalajara cartel's inner circle, the quiet muscle standing just behind Rafael Caro Quintero. He speaks little, watches everything, and carries out orders without hesitation or visible feeling. His loyalty is absolute and unshowy — he is there to protect his boss, not to be noticed.

Jorge A. Jiménez plays him almost entirely through stillness — a flat gaze, an unhurried walk — so that the violence, when it comes, lands harder for how little warning his face gives. The show doesn't waste dialogue explaining him; his usefulness and his menace are both legible in how rarely he needs to speak.