10 X-Files Monster of the Week Episodes Better Than the Alien Mythos

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The X-Files balanced its focus between long-running alien conspiracy storylines and self-contained ‘Monster of the Week’ episodes. While the complex alien mythology initially drew many viewers, it was often the standalone monster investigations – featuring Agents Mulder and Scully traveling across America to confront bizarre creatures – that were the most enjoyable. In many ways, The X-Files paved the way for shows like Buffy the Vampire Slayer and Supernatural, though it leaned more heavily into science fiction. Ultimately, all of these series relied on compelling monsters to keep audiences engaged.

Throughout its 11 seasons and 218 episodes, The X-Files delivered some truly memorable standalone stories. Here’s a ranking of the 10 best ‘Monster of the Week’ episodes – those that actually stand out as even stronger than the show’s famous alien-centered plotlines.

10) War of the Coprophages

The X-Files episode “War of the Coprophages” from Season 3 features Mulder and Scully investigating a town plagued by deadly cockroaches. It’s widely considered one of the show’s most unsettling “Monster of the Week” installments. The story takes a surprising turn when they discover the cockroaches aren’t insects at all, but sophisticated robots potentially originating from another planet. The episode also cleverly portrays how fear and paranoia can grip a community, showing scenes of panic buying, looting, and unrest happening alongside the robotic insect attacks.

9) Bad Blood

The Season 5 episode “Bad Blood,” written by Vince Gilligan of Breaking Bad, is considered one of the series’ funniest. The story is told out of order, beginning with Mulder and Scully recounting a case in Texas where Mulder believed they encountered a vampire. Because the story is told from their perspective, it’s playfully exaggerated and highly amusing. The episode utilizes a Rashomon effect – Mulder shot a young man he suspected was a vampire, but his and Scully’s accounts of what happened don’t quite match up. The episode culminates in a perfect punchline, making it a nearly flawless X-Files Monster of the Week installment.

8) Chinga

I still get chills thinking about the X-Files episode ‘Chinga’! Knowing Stephen King actually wrote it explains a lot of why it’s so unsettling. The story follows Scully on a trip to his home state of Maine, and she finds people mysteriously hurting themselves, all claiming a young girl forced them to. It’s set in this tiny, isolated fishing town, and honestly, the little girl and her doll are terrifying. It’s clearly King paying tribute to those classic killer doll stories, and it’s just a really disturbing episode overall.

7) Humbug

Darin Morgan is remembered as one of the most creative writers for The X-Files, particularly for episodes that stood out from the rest. His first contribution was “Humbug” from the second season, which sends Mulder and Scully to a town populated by former carnival performers. When a series of murders shakes the community, the FBI agents must investigate. This episode marked a departure for the show, being the first to heavily focus on comedy, as Mulder and Scully struggle to make sense of the case. With a surprising twist ending, “Humbug” is considered a standout ‘Monster of the Week’ episode.

6) The Post-Modern Prometheus

“The Post-Modern Prometheus” is a loving tribute to both Mary Shelley’s Frankenstein and the classic film adaptation, visually echoing the movie with its striking black and white presentation. When Mulder and Scully investigate a small town, they suspect a modern-day Frankenstein’s monster is responsible for an unusual situation involving a middle-aged woman. However, the episode turns out to be a heartwarming and humorous story, exploring what might have happened if the people in the original Frankenstein had accepted the monster. Many fans consider the final scene with Mulder and the Prometheus to be the best ending of any standalone X-Files episode.

5) Ice

The eighth episode of The X-Files‘ first season, “Ice,” is still considered one of the show’s best standalone stories. When a research team in Alaska is found killed after attacking each other, Mulder and Scully are sent to investigate. The episode shares similarities with John Carpenter’s The Thing, featuring a parasitic alien that infects both animals and people, turning them aggressive and violent. Like The Thing, “Ice” builds suspense through paranoia, and it’s widely regarded as one of the most thrilling episodes of the series.

4) Home

The X-Files episode “Home” is inspired by a real story, or at least one recounted in Charlie Chaplin’s life story. The episode centers on Mulder and Scully investigating the death of a baby born with serious health problems. Their investigation leads them to the Peacock family’s isolated home, where three brothers – the product of years of inbreeding – protect the property, and their controlling mother resides. This episode was particularly disturbing and marked the first time The X-Files included a viewer discretion warning.

3) The Host

The creepiest monster in The X-Files is arguably the Flukeman from the Season 2 episode “The Host.” Inspired by The Creature from the Black Lagoon, this sewer-dwelling creature, born from the aftermath of the Chornobyl disaster, is far more unsettling. A horrifying mix of human and parasitic fluke worm, it somehow ended up in New Jersey and began a string of murders. Many fans consider the Flukeman to be the most visually frightening monster ever featured on the show.

2) Tooms

Eugene Victor Tooms was the first recurring monster featured in a standalone episode of The X-Files. His initial appearance was arguably the scariest of all the show’s ‘Monster of the Week’ episodes, and his return was nearly as frightening. In the episode “Tooms,” the serial killer, who possesses a unique ability, escapes from prison and begins planning his next hibernation by targeting more victims. This sends Mulder and Scully on another chase. While knowing Tooms was a monster lessened the fear factor somewhat compared to his first appearance, he remains a genuinely creepy villain, making both episodes equally terrifying in their own ways. “Tooms” is often considered the best episode of The X-Files‘ first season, though his initial introduction is more frightening.

1) Squeeze

Eugene Victor Tooms is widely considered the most frightening creature ever featured on The X-Files because he initially presented as a normal man with unsettling abilities. His debut in the episode “Squeeze” was particularly effective; portraying him as a terrifying serial killer before revealing his monstrous nature was scarier than if he’d been obviously inhuman from the start. “Squeeze” was also The X-Files’ first “Monster of the Week” episode – the third episode overall – and it unfolded like a classic locked-room mystery, revealing Tooms’ ability to contort his body to fit through incredibly small spaces, like air vents, and his potential for hibernation. As the first of its kind, the episode was genuinely shocking, and Tooms continues to be remembered as the series’ creepiest villain.

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2026-03-02 22:14