- In the pilot episode ("Everything Changes"), Owen uses an alien form of Rohypnol — which he easily pocketed at work — on a woman who turns him down at a bar. When her boyfriend arrives and threatens to punch Owen, he sprays the boyfriend...who immediately calls a cab for all three of them. The Fridge Horror in that scene is off the charts — and has a lot to do with why many viewers hated Owen's character in Season 1.
- The Weevil chomping down on the security guard's neck (complete with blood spray) in the same episode. And he walks right up to the thing, because he mistakes it for a human wearing a mask.
- "Countrycide". Not only are the monsters particularly demonic and frightening... they're human. Enough said.
- Gwen gets filled with buckshot by a panicking captive of the villagers. A few minutes later, we are treated to a HORRIFIC shot of Gwen's waist looking like swiss cheese, complete with Owen plucking out the pellets. Happy retching.
- In the end, Gwen demands that the village ringleader tell her why he helped murder and cannibalize hundreds of people. His response? "Cos it makes...me...happy."
- The "fairies" from "Small Worlds". There's no way to stop them...
- Especially the ending with the creepy music/whispering/singing, the image popping up on the screen by itself, and Gwen zooming in to see Jasmine as one of the fairies.
- "Adrift". Particularly the description of what happened to Jonah overlaying the primal screaming.
- ''What were you hoping for? That I'd say a few nice words... That I'd be grateful...'' Oh yeah, and this line is said in a creepy low voice. BY IANTO!
- The Night Travellers of "From Out of the Rain" are just creepy as all hell.
- From "Ghost Machine": It's 1941. You are an 8 year old who just got transported to Cardiff while the Germans are bombing the everloving shit out of you. You said farewell to your mother and sister, not knowing that you will never see them again. Due to a paper error you are left stranded all alone on a train station for a whole night. An 8 year old, all alone, spending the night aimlessly wandering around a train station, completely lost, trying to find someone. You don't.
- Even worse, the fate of Lizzie Lewis from the same episode.
- "Greeks Bearing Gifts". You really don't want to know what the people around you are thinking.
- The man on the street (Neil) who plans to murder his family. Tosh overhears him and manages to put a stop to it, but if she hadn't....
- One random woman Tosh overhears in public hints that she's pregnant by her grandfather.
- The scene in "Kiss Kiss, Bang Bang" where the bomb molecularly bonded to John comes undone and he's able to pry it lose... peeling off several layers of skin in a bloodied mess.
- "Adam" had a TON of Nightmare Fuel. Just something about Ianto shrieking and weeping because Adam brutally mind raped him into thinking he's a psychopathic killer is chilling.
- "And I liked it..." OH GOD.
- The very idea that a stranger could re-write your entire personality just by altering a few select memories. It's Mind Rape in the most literal sense of the term. And you'd never even know anything was amiss until it was too late.
- The alien monster/parasite that was feeding on Katie's brain in Owen's backstory. Just seeing it latched on her brain like that...
- "Exit Wounds" has Jack being Buried Alive in the earth. Because he can't die permanently, he's locked in a constant cycle of death and reviving, awakening only long enough to choke and suffocate under the weight of six feet of earth crushing his entire body. For almost 2000 years. How he manages to remain sane after this ordeal is never explained.
- Owen's final "death" in that episode. He's sealed in a room that slowly floods with nuclear radiation, which dissolves his flesh on contact — and because he's undead, he's forced to remain conscious the entire time, watching as his body disintegrates.
- The sheer amount of Fridge Horror attached to his permanent and Cruel and Unusual Death. The fact that he doesn't feel pain is inconsequential.
- The first two series of Torchwood open with the narration of how the 21st century is when "everything changes" and that it's Torchwood's job to be ready. Considering how decidedly UNready Torchwood ends up being for every crisis, generally only solving things by the seat of their pants, with a little bit of luck, and frequent collateral damage, just think about how badly things would have ended up if Torchwood hadn't been there at all...
Nightmare Fuel / Torchwood