* ActorAllusion
** Creator/MatthewLillard is [[Film/{{Scream}} one of the targets of a]] SerialKiller.
** Creator/TedLevine is a police lieutenant mentoring a detective with [[Series/{{Monk}} some psychological issues]].
** Eva Guerra won a local beauty pageant before she met Hector. Creator/StephanieSigman has also played the titular character in Miss Bala, who is a beauty queen that becomes involved in the narcotics trade.
* DawsonCasting: 27-year-old Carlos Pratts plays Gus the college student.
* DiagnosisOfGod: Just what is up with Sonya isn't specified, but it appears to be UsefulNotes/AspergerSyndrome-style autism. WordOfGod, however, states that it is Asperger's, and the actress even has Alex Plank (creator of autism community website Wrong Planet, and someone who has Asperger's himself) as her advisor.
* FakeNationality
** German actress Creator/DianeKruger plays American Sonya Cross
** Colombian actress Catalina Sandino Moreno plays Mexican Alma Ruiz
** Australian actor Thomas M. Wright plays American (presumably) Steven Linder.
** Puerto Rican actor Creator/RamonFranco plays Mexican cartel leader Fausto Galván.
* QueerCharacterQueerActor: Creator/EmilyRios portrayed Adriana Mendez, a reporter, who's a lesbian like her (and both are also Mexican-American). She gushed about getting to play a woman like herself, even in a minor role, and the directors accepting her input that Adriana's sexuality be just incidental without being the focus of her entire character.
* RealLifeRelative: Cerisola is played by Creator/BrunoBichir, who is Creator/DemianBichir's (Marco Ruíz) younger brother.
* WhatCouldHaveBeen: The executives at [=FX=] wanted it to be set at the Ambassador Bridge between Detroit and Windsor, mirroring the Øresund Bridge episode in Bron|Broen. However, the writers were able to convince them to make the pilot episode set at the Bridge of the Americas.