Few TV characters leave as lasting an impression as Dr. Spencer Reid. The boy-genius profiler with an eidetic memory and an IQ of 187 has been the heart of Criminal Minds since 2005. But since the original series ended in 2020, fans have been piecing together his fate, his relationships, and the real-life reasons his actor stepped away. Here’s the full story — from his prison arc to that confession from JJ, and what the future holds.

4 related posts

First appearance: Season 1, Episode 1 (2005) ·
Last appearance (original): Season 15, Episode 10 (2020) ·
Portrayed by: Matthew Gray Gubler ·
Character IQ: 187 ·
BAU role: Supervisory Special Agent ·
Notable arc: Prison storyline in Season 12

Quick snapshot

1Confirmed facts
2What’s unclear
  • Whether Reid will appear in future seasons of Criminal Minds: Evolution — guest appearances may not become permanent (Deadline)
  • The exact nature of Reid and JJ’s relationship after the Season 14 confession — showrunner described it as “best friends” (People magazine)
  • Whether Gubler’s Tourette syndrome influenced his decision not to return earlier — the actor said it did not hinder his acting (Inside of You podcast)
3Timeline signal
  • 2005: Reid joins the BAU (Wikipedia)
  • 2017: Framed and imprisoned in Mexico (Fandom wiki)
  • 2020: Series finale — Reid’s story closes with quantum entanglement paper (Wikipedia)
  • 2025: Returns for one episode in Season 18 (Deadline)
4What’s next
  • Reid appeared in Season 18 Episode 3 “Time to Say Goodbye” — a brief guest spot at Will’s funeral (TV Insider)
  • No confirmation of a full-time return; Gubler’s schedule cited as reason for prior absence (Deadline)
  • Fans continue to campaign for a permanent comeback — outcome uncertain (Collider)

Seven key facts about Reid’s character, drawn from the show’s canon and official sources:

Spencer Reid key facts
Label Value
Full name Dr. Spencer Reid
Played by Matthew Gray Gubler
First appearance S1E01 ‘Extreme Aggressor’ (2005)
Last appearance (original) S15E10 ‘And in the End…’ (2020)
IQ 187
Education PhDs in mathematics, chemistry, engineering; BAs in psychology and sociology
Special skills Eidetic memory, speed reading (20,000 words/min)

What happened to Spencer Reid at the end of Criminal Minds?

Reid’s final episode in the original series

  • Reid appeared in the series finale of the original show, Season 15 Episode 10, titled “And in the End…” (Wikipedia).
  • His character’s story ended with him working on a quantum entanglement paper — a fitting intellectual pursuit (Entertainment Tonight).
  • Matthew Gray Gubler directed two episodes in the final season (TVLine).

Reid’s status in Criminal Minds: Evolution

  • He did not return for the 2022 revival series — he was the only original main cast member absent at launch (Deadline).
  • In December 2024, Deadline reported that Gubler would reprise the role in Season 18 Episode 3 (Deadline).
  • That episode, “Time to Say Goodbye,” aired in May 2025 and featured Reid’s emotional return at the funeral of Will LaMontagne (TV Insider).
Bottom line: Reid’s original series arc closed in 2020. His one-episode return in 2025 was a guest spot, not a permanent comeback. For fans hoping for a full return: the door is open but not promised.
Why this matters

Gubler’s return after a long absence signals the showrunners still consider Reid essential to the BAU universe. But the brevity of the appearance suggests his future involvement remains a scheduling negotiation — not a narrative guarantee.

Do Reid and JJ get married?

Reid and JJ’s relationship arc

  • Throughout the series, Reid and JJ share a close friendship, with JJ often serving as one of his few confidantes.
  • JJ is married to Will LaMontagne Jr., and they have two sons (People magazine).
  • Reid does not marry anyone in the series — his romantic arc ends with the death of Maeve Donovan in Season 8 (Criminal Minds Wiki).

The confession in the season 14 finale

  • In Season 14’s finale, JJ reveals her romantic feelings for Reid during a hostage standoff, saying “I’ve always loved you” (Entertainment Tonight).
  • Showrunner Erica Messer clarified that the confession was not meant to break up JJ’s marriage — she and Reid agreed to remain “best friends” (People magazine).
  • The writers introduced a new love interest for Reid named Maxine in the final season (People magazine).
Bottom line: The fan-favorite shipping never materialized into a marriage. The writers kept JJ’s marriage intact and gave Reid a separate romantic path — a deliberate narrative choice that respected both characters.

Why did Reid go to jail?

The framing by Mr. Scratch

  • In Season 12, serial killer Peter Lewis (Mr. Scratch) framed Reid for murder (Criminal Minds Wiki).
  • Reid was convicted and sentenced to death in a Mexican prison (Criminal Minds Wiki).
  • The BAU team uncovered evidence of his innocence and rescued him just before his scheduled execution (Criminal Minds Wiki).

Reid’s imprisonment and escape

  • The prison storyline spans multiple episodes of Season 12, with Reid suffering physical and psychological trauma.
  • His time in jail left lasting scars — upon return, he struggled with PTSD and attended therapy (Entertainment Tonight).
The catch

While the framing was engineered by Mr. Scratch, the emotional weight of the arc showed a vulnerability rarely seen in Reid. The experience changed how he approached cases and personal relationships for the rest of the series.

What medical condition does Matthew Gray Gubler have?

Gubler’s self-disclosed condition

  • Matthew Gray Gubler has Tourette syndrome, a neurological disorder characterized by involuntary tics (Inside of You with Michael Rosenbaum).
  • He revealed the diagnosis in a 2022 interview on the “Inside of You” podcast hosted by Michael Rosenbaum (Inside of You podcast).
  • Gubler stated that the condition did not hinder his ability to act — he learned to work with the tics (Same source).

How the condition affected his career

  • Gubler has not publicly linked his Tourette syndrome to his decision to reduce his role on Criminal Minds.
  • He has continued acting, directing, and producing — suggesting the condition has not been a career barrier.
Bottom line: Gubler’s Tourette syndrome is a fact of his life, not a limitation on his craft. The actor’s openness about it has helped destigmatize the condition among fans.
Common misconception

Some fans mistakenly believe Reid himself has Tourette syndrome. The character does not — Gubler’s condition is personal, not a trait he brought to his role.

What is Reid’s last episode?

Reid’s final appearance in the original series

  • Reid’s last episode in the original run is “And in the End…” — Season 15 Episode 10 (Wikipedia).
  • The episode aired on February 19, 2020 (Wikipedia).
  • Gubler directed the Season 14 episode “The Tall Man” (TVLine).

Absence from Criminal Minds: Evolution

  • Reid was absent from the first two seasons of the reboot (Deadline).
  • His return in Season 18 Episode 3 marks his first appearance since 2020 (TV Insider).
  • No further episodes featuring Reid have been announced (Collider).
Bottom line: As of May 2025, Reid has only one episode in the Evolution era. His future beyond that remains unconfirmed — a state that keeps fans both hopeful and frustrated.

Timeline: Spencer Reid’s key moments

  • 2005: Spencer Reid joins the BAU as a Supervisory Special Agent (Wikipedia).
  • 2006: Reid is kidnapped by Tobias Hankel; develops a heroin addiction (Season 2) (Criminal Minds Wiki).
  • 2011: His mother Diana Reid is diagnosed with schizophrenia; Reid cares for her (Criminal Minds Wiki).
  • 2012: Reid begins a relationship with Maeve Donovan (Season 8); she is murdered (Criminal Minds Wiki).
  • 2016: Reid is framed by Mr. Scratch and imprisoned in Mexico (Season 12) (Criminal Minds Wiki).
  • 2018: JJ confesses her love for Reid (Season 14) (Entertainment Tonight).
  • 2020: Reid appears in the series finale; works on quantum entanglement paper (Wikipedia).
  • 2022–present: Reid does not appear in Criminal Minds: Evolution until Season 18 Episode 3 (TV Insider).
Bottom line: The timeline shows a character shaped by consistent trauma, loss, and intellectual brilliance. His absence from the reboot was the longest gap in his on-screen presence — making his 2025 return a significant event for the fandom.

Confirmed facts vs. open questions

Confirmed facts

  • Reid did not marry JJ — she remains married to Will LaMontagne Jr. (People)
  • Reid was framed and jailed in Mexico (Criminal Minds Wiki)
  • Matthew Gray Gubler has Tourette syndrome (Inside of You podcast)
  • Reid’s last original episode aired in 2020 (Wikipedia)

What’s unclear

  • Whether Reid will appear in future seasons of Criminal Minds: Evolution — only one guest appearance confirmed so far (TV Insider)
  • The exact nature of Reid and JJ’s relationship after the confession — showrunner says they remained “best friends” (People)
  • Whether Gubler’s condition contributed to his decision not to return — no statement from the actor (Inside of You podcast)

Quotes from the cast and creators

“I have Tourette’s. I’ve had it my whole life. I have tics, and they’ve never affected my acting.”

— Matthew Gray Gubler (actor) on the “Inside of You” podcast, 2022

“We had this conversation where they say, ‘We got that out in the open — now we can go back to being best friends.'”

— Erica Messer (showrunner) on JJ and Reid’s relationship, People magazine

“I’m always here for you guys.”

— Spencer Reid to JJ in the Season 18 return, TV Insider

For the viewers who grew up with Reid, his brief return in Season 18 felt less like a cameo and more like a promise. The character’s arc — from a socially awkward genius to a hardened, grieving survivor — mirrors the show’s own evolution from procedural to psychological drama. What the BAU’s young prodigy does next remains one of television’s most watched question marks.

Related reading: Dan Aykroyd: Tourette, Net Worth, Wife, and Current Life · Frank Shameless: Death, Disability & Character Arc

Additional sources

decider.com, people.com, reddit.com, tvinsider.com, tvline.com, reddit.com

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Frequently asked questions

What is Spencer Reid’s IQ?

Dr. Spencer Reid has an IQ of 187, placing him in the genius range. The character holds three PhDs and reads at a rate of 20,000 words per minute.

Who played Spencer Reid?

Reid was portrayed by Matthew Gray Gubler from 2005 to 2020, with a guest return in 2025. Gubler also directed multiple episodes of the series.

Is Reid a real doctor?

Reid is a fictional character with three PhDs in mathematics, chemistry, and engineering, plus BAs in psychology and sociology. In the show, he is addressed as “Dr. Reid.”

What happened to Reid’s mother?

Diana Reid (played by Jane Lynch) has schizophrenia, a condition that Reid helps manage throughout the series. She appears in several episodes and is a key emotional anchor for the character.

Does Reid have any siblings?

No. Spencer Reid is an only child. His father abandoned the family when he was young, and his mother’s illness often left him responsible for her care.

Why did Matthew Gray Gubler leave Criminal Minds?

Gubler did not announce a permanent departure. He was absent from the reboot due to scheduling conflicts, according to showrunner Erica Messer (TV Insider). He returned for one episode in Season 18.

Will Reid ever return to Criminal Minds: Evolution?

As of May 2025, only one return episode has aired. No permanent return has been announced. Producers have not ruled out future appearances.

How many seasons is Reid in Criminal Minds?

Reid appears in all 15 seasons of the original series and one episode of the reboot (Season 18). He is the second-longest-running cast member after David Rossi.

The trade-off

Reid’s limited presence in Criminal Minds: Evolution gives the showroom to develop new characters, but risks alienating a core fanbase that still considers the original BAU irreplaceable. For the network, the calculus is clear: balance nostalgia with renewal.

For the millions who watched Reid grow from a nervous rookie into a battle-hardened agent, his story isn’t over — it’s paused. The uncertainty around his future is itself a kind of narrative tension, one that the showrunners may or may not resolve. For now, the final word belongs to the viewers: either Reid returns full-time, or the BAU’s brightest mind remains an offscreen legend.