History Trivia / CriminalMinds

* IKnewIt: Many fans correctly guessed that [[spoiler:Walker would be the BAU agent being killed in the season 13 premiere, given the departure of Damon Gupton]].

* TheWikiRule: [[http://criminalminds.wikia.com/wiki/Criminal_Minds_Wiki The profile indicated that there would be one.]]

* TalkingToHimself: Creator/ElisabethHarnois in "Broken Mirror", when the Davenport twins briefly talk on the phone.

* ActorSharedBackground: Derek Morgan is biracial like his actor Creator/ShemarMoore.

* RealLifeWritesTheHairstyle: The [[https://www.looper.com/395621/the-real-reason-garcias-hair-turns-red-in-criminal-minds/ reason]] why Garcia's hair is red in the second half of season 5 and the first half of season 6 is because her actress Creator/KirstenVangsness, who is a natural blonde, had dyed her hair to this colour for her role in a webseries called ''Vampire Mob''.

* NamesTheSame:
** Billy Flynn, serial killing [[Theatre/{{Chicago}} tap-dancing lawyer]].
** Subverted - Eric Olson, an [=UnSub=] from Season 4, is a letter away from sharing his name with Creator/EricChristianOlsen. Probably why the show specifies his full name as Eric Ryan Olson.

** Prentiss' actress Creator/PagetBrewster wears a wig in the last two seasons of the show as she had cut her hair short to a BoyishShortHair due to her hair prematurely going gray. Indeed in the GrandFinale, Prentiss tells her teammates that she is getting a haircut soon.

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* AbsenteeActor: Out of the sixteen series regulars, the only characters who appeared in every episode of their respective times on the show prior to their departures or until the end (i.e. without a single absence) are Elle Greenaway (until her departure in "The Boogeyman"), Jason Gideon (until his departure in "In Name and Blood"), David Rossi, Alex Blake (until her departure in "Demons"), Kate Callahan (until her departure in "The Hunt"), Derek Morgan (until his departure in "The Sandman"), Luke Alvez, Stephen Walker (until his death in "Wheels Up") and Matt Simmons.
** Garcia is absent in "Broken Mirror". Despite that, she is the only character to appear in nearly every episode.
** Following her introduction in "Compulsion" along with her departure in season 6 and return in season 7, JJ is absent in "Broken Mirror" as well as being absent in ten episodes due to maternity leave ("Masterpiece", "52 Pickup", "Brothers in Arms", "Soul Mates", "Bloodline", "The Witness", "'Til Death Do Us Part", "Outlaw", "The Night Watch" and "Pariahville").
** From the pilot until his departure after "Sick Day", Hotch is absent in "25 to Life".
** Following her introduction in "What Happens at Home" until her departure after "Supply and Demand", Seaver is absent in "The Thirteenth Step" and "Sense Memory".
** Following her introduction in "The Last Word" along with her departure in season 7 and return in season 12, Prentiss is absent in the last six episodes of season 6 due to faking her death in order to go undercover ("With Friends Like These...", "Hanley Waters", "The Stranger", "Out of the Light", "Big Sea" and "Supply and Demand").
** Tara is absent in "Target Rich", "Hostage", "A Badge and a Gun", "Derek", "Taboo", "The Anti-Terrorism Squad", "Seek and Destroy", "Hell's Kitchen", "Dust and Bones" and "Neon Terror".
** Reid is absent in "Awake", "Internal Affairs", "Future Perfect", "Profiling 202", "Seek and Destroy", "Neon Terror", "False Flag", "Submerged", "All You Can Eat", "Mixed Signals", "Broken Wing" and "Sick and Evil" as well as appearing in flashbacks for "Flesh and Blood", with the first five due to him seeing his mother.
** With this, the only seasons in which the BAU team appear in every episode are seasons 5, 7-10 and 15.

* ImageSource:
** FormerTeenRebel

* FanNickname: "Agent Mary Sue" for Ashley Seaver, by the fans who don't like her.

** There were plans to bring back Hotch and Morgam for the GrandFinale but it never materialised due to Creator/ShemarMoore's current commitments on ''Series/SWAT2017''.

** There were plans for a prequel series focusing on a young Gideon and Rossi but CBS opted to pick up ''Beyond Borders'' for a full series, so elements of the aborted series would be incorporated into "Nelson's Sparrow".

** There were plans for a prequel series focusing on a young Gideon and Rossi but CBS weren't interested as they were more interested with ''Beyond Borders'', so elements of the aborted series would be incorporated into "Nelson's Sparrow".

** Gideon was going to commit suicide in the end of his last episode but Mandy Patinkin disliked it, so the ending was cbanged to him leaving after writing a letter to Reid.

** The original plan for season 11 was to have Tara Lewis as a temporary replacement for both Kate and JJ for the first six episodes. However, Tara proved to be popular with fans and critics that the character became a FakeGuestStar and would become a permanent member of the BAU after JJ's maternal leave ended, thus being promoted to series regular the following season in addition to Creator/JenniferLoveHewitt opting to depart than returning midway during the season.

** "Lauren" was going to end with Prentiss being KilledOffForReal but just weeks before the episode was set to air, a new ending was short for the episode by revealing that Prentiss had faked her death to go undercover. This is evident with Prentiss being played by a stand-in than Creator/PagetBrewster as you don't see her face in this scene.

** The original plan for season 11 was to have Tara Lewis as a temporary replacement for Kate, who was in maternity leave in the end of season 10, which would allow Kate to return in season 12. However, it was discarded when Creator/JenniferLoveHewitt decided to depart than returning for season 12, which led to Lewis becoming a temporary replacement for JJ and then joining the BAU after JJ's maternal leave ended, resulting her being a FakeGuestStar for that and then PromotedToOpeningCredits in season 12.