Saw something proper odd on the Northern Line at midnight

This happened about six weeks ago, late shift meant I was on the last train from Leicester Square heading north around 11:55pm. Nearly empty carriage - couple of other people at the far end, me in the middle. Train pulls into Tottenham Court Road and the doors open.

There's this figure on the platform. Really thin, like unnaturally so, wearing what looked like Victorian clothing but not quite right somehow - the proportions were off. It was staring directly at me. The doors closed before it could get on, thank God, but as the train pulled away I swear it moved faster than was physically possible to keep pace with my window. For maybe 10 seconds it was just matching the train's speed, head tilted, watching me.

My mate said it was probably just a drunk person or street performer, but I've been on that line hundreds of times and this felt... wrong. Showing all the signs of Spring-heeled Jack encounters you read about in the old accounts. Anyone else had something similar on the Underground?

Definitely a street performer mate. London Underground is full of people doing weird things for attention. The 'Victorian clothing' thing is probably what they were actually wearing and you've just built it up in your head into something creepier. Happens to all of us - pareidolia of the mind, innit.

The London Underground has loads of residual paranormal energy because of all the WWII deaths down there during the Blitz. But Spring-heeled Jack is usually associated with Victorian London proper, not the modern era. Though who's to say the entity couldn't have adapted? Did you feel watched after, or any physical sensations?

I believe you because I had something similar on the Piccadilly Line back in July. Person in a suit that seemed to have too many joints in their limbs. Could move in ways that didn't look right. Only saw them for a second but it stuck with me. London Underground paranormal encounters are definitely a thing - there's a whole subreddit for it apparently.

@SpectralSwansea the technical details matter here - you said ". Nearly empty carriage". But what was the lighting situation exactly? Underground carriages have those flickering fluorescent strips that can cause some genuinely strange visual artefacts, particularly motion blur on peripheral vision.

That said, a few questions worth considering:

Did you notice any temperature drop beforehand?, Was there any audible disturbance - unusual sounds from the figure?, Did the other passengers react at all?

I run spirit box sessions regularly and what strikes me about underground encounters is the contained acoustic environment. Any EVP-style sounds would be amplified significantly in a tube carriage.

@RobinSinclair raises valid points about residual energy but I'd want to rule out the mundane explanations first before going down that route. The Northern Line specifically has some documented weird sections between Camden and Morden - worth cross-referencing which stretch this occurred on.