4.6 million views and a police statement: TikTok turned Dr Seuss into a horror story

Dubai: A children's book character is currently terrorising teenagers across the UK and Ireland, at least according to TikTok, and police forces on both sides of the Irish Sea have had to step in to confirm that no, the Cat in the Hat is not lurking in anyone's driveway.

Here is how a Dr Seuss classic became a viral horror trend in 2026.

The trend traces back to 30 June 2026, when a TikToker called Daletok posted a clip using a scene from the 2003 live-action Cat in the Hat film, starring Mike Myers, under the caption: "How mfs be dancing at prom just to overdose 2 weeks later." The video used Guts' Theme, the eerie track from the 1997 anime Berserk, as its backing music. It picked up 4.4 million views in a week.

That single post sparked a wave of imitations. TikTokers and Instagram Reels users began taking scenes from the film and attaching the darkest captions they could think of, reinterpreting what is technically a children's movie as a found footage horror. The Cat's dancing scenes, his wide grin, his towering striped hat, all of it turned out to translate unnervingly well into the analog horror aesthetic.

By August the trend had mutated into something with real-world consequences.

AI-generated images and video began appearing on Facebook, Snapchat and TikTok, placing a life-sized, towering version of the character on dark residential streets in Ireland and the UK. The images first emerged in Limerick, showing a freaky cat-like figure wandering streets at night and standing in driveways. They spread quickly, with sightings claimed in Glanmire, Cork, Cahir, Tipperary, Curracloe in Wexford and Broadford Park in Dublin.

They were not real. Gardaí in Wexford confirmed the images had been generated using artificial intelligence and issued a statement asking people to verify content before sharing.

The UK followed the same pattern. South Yorkshire Police was forced to deny social media claims that a killer Cat in the Hat had been spotted, and had to address a fake Facebook post purporting to be an official police warning about the sightings. A spokesperson said: "If you do see posts online providing policing updates and advice, please check that they are from an official policing account."

Claims of sightings spread to Manchester, Merseyside, Newcastle, Essex, Leeds, York, Cardiff and Blackpool.

The BBC spoke to teenagers who had been genuinely frightened. Sixteen-year-old Skye described being at a sleepover when everyone started watching Cat in the Hat videos at 3am. When she walked down her friend's driveway afterwards, she became convinced the Cat in the Hat was going to jump out. She called her mother to come and collect her.

Fourteen-year-old Lily, meanwhile, said she wanted to go and meet him, having heard the Cat in the Hat had a particular location in mind.

Her mother's response was immediate: "You are not going to meet anyone in the woods in the middle of the night."

One TikTok post showing the original Mike Myers costume from the 2003 film with the caption "Help, what do I do?" received 14.6 million views in three weeks.

Online fascination with the trend surged further in August when Propstore announced that the original costume worn by Mike Myers in the 2003 film was heading to auction, with an estimated value of up to $24,000. That announcement circulated widely and added a real-world object to what had otherwise been a purely digital haunting.

Some users went further and created conspiracy theories suggesting that Mike Myers himself was somehow trapped inside the costume.

This is not the first time AI-generated content has caused real-world confusion online. Earlier this year, a viral prank involving a fake AI-generated figure led to a string of genuine police calls in the UK from people who had been convinced by fabricated footage.

The closest historical parallel is the 2016 killer clown wave, when people across the UK and Ireland dressed as Pennywise and other sinister clowns and filmed themselves confronting members of the public. Police were called across multiple forces. At least one school closed briefly over clown-related fears. The difference in 2026 is that nobody needed a costume. Artificial intelligence handled the threat entirely from behind a screen.

Police advice on the Cat in the Hat trend is the same as it has always been for viral misinformation: pause before sharing, check the original source, look for confirmation from official accounts, and treat any invitation to meet strangers at night in isolated locations as a serious warning sign rather than a fun adventure.

As for the Cat in the Hat, he has a new animated film coming in November voiced by Bill Hader. That version appears to be considerably less sinister.