The opening and ending of the show will quote famous celebrities to bring out the main content of the episode, and it is usually read by the key starring of each episode.
Matthew Gray Gubler was born with dark circles, and the makeup artist of the crew had to use foundation to cover his dark circles.
Christine Van Nuess was not included in the official starring list in this season.
The opening picture of the show is a picture of real serial murderers. They are John Wayne Gacy, Charles Manson, Richard Reva Ramirez (the chief disciple of the devil), and Hildo Kaczynski (University Aviation Bomb Geek), Timothy McVeigh, Lee Harvey Oswald and Susan Smith.
The original title of "Criminal Minds" was "Quantico" ("" in English ), and the pilot version was shot in Vancouver. In the original script of "Quantico", Jason Gideon was named Jason Donovan.
According to the setting of the plot, Garcia is not Spanish, and the surname is derived from her stepfather; Elle is assumed to be half of Cuban descent.
The title of Episode 3 comes from a song "" sung by the Who .
The title of Episode 8 comes from the film "Born Murderer" directed by Oliver Stone in 1994.
In Episode 14, Jacob has a tattoo on his right arm. It is a heart with Sarah's name written on it. There is also a small line below: "Til Death Do Us Part".
The first kiss between Reid and Lila in the 18th episode was also the first on-screen kiss of Matthew Gray Gubler (the actress was recommended by Matthew to the crew).
The title of the 19th episode "" is a Spanish word, the root is macho, which means a strong sense of male pride.
