Chuck 'Chucky' Marstein played by Michael Ornstein from Sons of Anarchy (2008), made an appearance as an employee in the scrap metal yard.
Escorpion was the character name of Emilio Rivera in Z Nation.
When some of the Mayans are talking to Louie, right after he flipped his car, Angel says "How was your visit to the Upside Down". The "Upside down" is what another dimension is called in the Netflix Original "Stranger Things".
Escorpión is Spanish for Scorpion.