Have you got some links where can this be reported in UK in addition to legal action?
Uk CyberCrimes, that's the first and only place to go at the start.
You can't start a lawsuit against random poeple before you first file a complaint with the police detailing your loss and the way it happened.
What are you going to tell the judge, this guy's name sounds like the scammer and he works for crypto so...make him give back my money?
Also, one more thing, if he intended to scam from the beginning, which I see highly likely, that's a UK ltd company, it can be set for $50 by intermediaries who will ask you only for a copy of your ID, and nobody actually verifies those so high chances that even those were fake.
Of course, it might not be just a coincidence of names but still, you will need to let the police figure that out, it's possible both of those names and individuals are fake, even the LinkedIn profile.