Oh, this is a marriage made in a dark, gritty little corner of heaven, folks.

TVLine has learned exclusively that FX’s Sons Of Anarchy has booked film vet Danny Trejo — whose myriad credits include, to name but a few, Machete, From Dusk Till Dawn and The Devil’s Rejects — for a multi-episode Season 4 arc.

Matt’s Inside Line: Scoop on Sons Of Anarchy‘s New Season

Trejo will play Romero “Romeo” Parada, a charismatic and (duh) dangerous former commando for the Mexican military who becomes a new associate of the SONS.

Trejo popped up on the small screen just this past TV season, guesting on Fox’s Bones and ABC’s Modern Family (as a janitor with a crush on Claire).

Sons Of Anarchy‘s fourth cycle premieres in early September.