Criminal Minds: Best Spencer Reid Episodes Ranked

CBS' "Criminal Minds" gives viewers a slate of extraordinarily sympathetic characters bursting with complex pasts, dazzling heroism, and shocking secrets. High up on the list is Spencer Reid (Matthew Gray Gubler), an incredibly intelligent FBI agent and the youngest member of the Behavioral Analysis Unit. One of the more offbeat characters in the world of "Criminal Minds," Reid combines social awkwardness with emotional awareness, which makes him a crime-solving superstar who thrives on finding common ground with friends and foes alike.

While Reid's depth is an asset in the field, it can serve as a double-edged sword in his personal life, as he struggles to form bonds with others and regularly catches the interest of some of the scariest criminals the team ever goes up against. After so many seasons and Reid-centric stories, it's still easy to feel like we've only scratched the surface of his potential. There are plenty of intriguing episodes of "Criminal Minds," but if you're looking to lean into the Reid of it all, we've got a few suggestions. These are the 12 best Spencer Reid episodes of "Criminal Minds," ranked.

Audiences know from the get-go that Reid hasn't had an easy life. But the series takes time to reveal the details of his unique childhood trauma. This is partially due to the fact that Reid himself doesn't seem totally sure of the specifics, having repressed major parts of his memory in order to continue functioning. Season 4's "The Instincts" kicks off with a dream, in which Reid finds the body of a young boy in a basement, only to see him wake up. He attempts to dismiss the vision, but finds himself unable to forget it. Compounding matters is the fact that Reid is visiting Las Vegas, his hometown, to investigate the grisly murder of a child. Moreover, Diana is hospitalized, leaving Reid with a whole slew of complicated feelings to sort through.

More secrets are uncovered throughout this stirring episode, as Reid is forced to confront the horrible things that happened in his childhood. The outcome of all this heartache is positive, however: A kidnapped child is returned to his parents, laying the case to rest. This is a difficult and trauma-heavy episode for Reid, but his connection with his mother, which endures despite their hardships, makes up for all the horror.

"Minimal Loss" sees the late, great Luke Perry step into one of his most unflinchingly unsympathetic roles: cult leader Benjamin Cyrus. After being kicked out of a communal living situation for assaulting young girls, Cyrus returns and usurps the man who forced him out. The situation spirals into a strict religious organization, in which he presents himself as a savior of humanity and marries a 15-year-old girl named Jessica. He needs to be taken down, and that's exactly what Prentiss and Reid aim to do — but Cyrus doesn't go easily.

This is a Reid spotlight episode, showcasing his ability to think on his feet. He's ultimately able to convince Cyrus to release the compound's children after discovering the cultists have rigged the place with explosives. Prentiss, for her part, shows incredible loyalty when she reveals her own identity to cover for Reid, undergoing a vicious beating at Cyrus' hands for her trouble. Reid is plagued with guilt, but they're eventually able to wrangle a (mostly) happy ending out of the mire by saving a majority of the cult's children.

One of the first episodes in which viewers have the opportunity to see what Reid is capable of, Season 1's "L.D.S.K.," which stands for "long distance serial killer," is a truly memorable installment. The crew is brought in to investigate after a sniper takes aim at random victims, leaving some to bleed out and others to be hospitalized. We soon learn that the killer is Phillip Dowd (Timothy Omundson), an ER nurse whose departure from the military and the police has left him with a huge, murder-y chip on his shoulder.

At first, Dowd attempts non-lethal assaults, in the hopes of being praised for saving the lives of his victims in the ER. But that all goes awry pretty quickly, as Dowd doesn't actually care whether these people live or die. His own paranoia dooms him in the end, culminating in a sequence involving him, Reid, and Hotch. This is a rare moment of early action for Reid, who generally does not use guns. But here, he's the one who fires the shot that kills Dowd. "I was aiming for his leg," he jokes. Gallows humor though this may be, Reid's actions certainly save lives.

"Somebody's Watching" kicks off with a brutal double homicide: A young actor and her fiancé are shot to death after simply answering the door. Meanwhile, actor Lila Archer (Amber Heard) is receiving bizarre threats and strange unlabeled gifts. Then people in her professional life start dropping like flies. This leads the team to suspect that the murders are being committed by a stalker who is obsessed with Lila. Despite the chaos of this situation, Reid and Lila develop an attraction to one another, which turns dangerous as photos of him taken from suspicious vantage points pop up in a manila envelope. Eventually, the team realizes that the killer is actually a friend of Lila's, Maggie Lowe (Katheryn Winnick).

Though Maggie is obsessed with Lila, Lila is completely unaware of her activities. She's even more stunned to realize that Maggie has been holding onto a secret love for her after a one-night tryst, many years before. Using Maggie's jealousy against her, Reid boasts that he and Lila are actually in love. This causes Maggie to come after Reid instead of Lila, and gives him time to disarm her. While Maggie might still have plenty of issues to sort through, she survives the encounter, and Reid assures her that she can get help. Though the episode's spotlight is on Reid's chemistry with Lila, his interactions with Maggie are just as compelling.

When a killer targets an FBI agent using chess lingo, you know things must be bad. That's definitely the case in "Zugzwang." As enthusiasts may know, "zugzwang" refers to a situation in which a player is disadvantaged by the necessity of making a move. That's Reid's situation in this episode, but the stakes are much higher than a game.

Reid's love interest, Maeve Donovan (Beth Riesgraf), disappears, leaving Reid distraught. Things get even more intense when he becomes entangled in a series of mysterious phone calls. This case feels doomed to end in tragedy from the first moments of the episode, and that feeling only builds as it progresses towards its finale. Ultimately, Reid is unable to prevent Maeve's kidnapper from taking violent action, leading to both of their deaths. While Reid is so often able to best his opponents, this episode sees him completely blindsided. He's helpless to save his newfound love, which makes for a difficult and deeply moving story.

Though Reid meets his match many times over the course of "Criminal Minds," it's hard to deny that he and Cat Adams share a particularly special kind of arch-nemesis chemistry. She makes a handful of appearances throughout the series, but "Entropy" offers the first real dose of their wild battle of wits. Reid is undercover, pretending to be a man who wants his wife dead. Cat plays along at first, only to quickly turn the tables on him. She notes that she's aware he's wearing a wire, pulls a gun, and trains it on him under the table.

Rather than kill Reid immediately, Cat bargains for her freedom, insisting that they play a game. She sets a timer and says that he has to answer her questions — and that she'll know if he's lying. With the stakes immediately at an all-time high, the game is officially on. Most of the episode is an intense back-and-forth exchange between these two brilliant minds. This makes for one of the most exhilarating installments of a series that thrives on building tension. Though Reid comes out the victor in the end, it's not by much. "Entropy" officially establishes Cat as one of the most dangerous threats he ever faces, as well as one of the few who matches his intelligence.