The building used in exterior shots as the office building for the U.S. Marshals' Albuquerque office is the historic Sunshine Building in downtown Albuquerque, designed by famous architect Henry C. Trost.
The prop police cars used for Albuquerque Police vehicles have the same color and graphic scheme as real APD vehicles, but the seals on the rear fender are not APD while having the same shape as the real thing.
The SE logo on Mary's Ford Probe disappears from time to time off the doors.
During the 2012 season, Stephen Lang makes a cameo appearance across 3 episodes, as character "James Wiley Shannon". The coincidental irony being that just a year prior (and the very last project he'd worked on prior to this), Lang had starred as "Commander Nathaniel Taylor" in TV Series "Terra Nova", a TV series which centered around a family, who's family name was "Shannon".