The Cousins

Leonel and Marco Salamanca (played by Daniel and Luis Moncada), referred to as The Cousins, were twin hitmen for a Ciudad Juárez Mexican drug cartel.

Character biography
In spite (or because) of their austere, mechanical physicality and virtually non-verbal interaction, they are a fearsome presence and kill without hesitation or emotion. They are, in fact, revealed to have killed Tortuga by decapitating him with a machete. As children they occasionally argued, though Don Salamanca put this at least partially to rest when he nearly drowned one of them and reinforced to them that "family is all."

Season Three
Following the death of Tuco, (who turns out to be their cousin) they are summoned to New Mexico by Don Salamanca to kill Walter White. En route to being smuggled into America, they killed the entire group of immigrants when one recognized them by their skull-tipped boots. The Cousins quickly tracked down Walter to his house and were about to kill him, when Mike informed Gus Fring of their presence and Gus ordered them by text message to abort the mission. Although Gus has given them permission to kill Walter after their partnership ends in three months, Gus is warned that The Cousins will probably ignore such deals. Later, outside Walter's house, Mike finds a drawing of a scythe, which he believes The Cousins have drawn to send Walt a message. Gus redirects the brothers by telling them that it is Hank who killed Tuco, and gives them special permission to kill a DEA agent on his turf, which is normally prohibited due to the amount of attention drawn by such an action. When they confront Hank, he kills Marco by firing a hollow-point directly into his head, causing it to burst. Leonel is severely injured; prior to Marco's death, Hank backs his car into Leonel and presses him against another vehicle, causing Leonel to lose both of his legs.

Season Four
To silence Leonel, Gus Fring has Mike assassinate him in the hospital, effectively distracting the entire police force in the hospital building by personally bringing them fried chicken; Leonel dies in his hospital bed, and Mike is seen leaving the hospital after disposing of a syringe.

Murders committed by The Cousins

 * Mexican travellers: Shot & blown to death. (2010)