Fake celebrity artifacts (like signatures, items, etc.) is a known form of fraud, and AFAIK there were prosecutions on it. I.e. if I sell you a book that is cla

Fake celebrity artifacts (like signatures, items, etc.) is a known form of fraud, and AFAIK there were prosecutions on it. I.e. if I sell you a book that is claimed to be signed by celebrity, but in fact it's my own signature, I would definitely be committing fraud. I think impersonations may be argued the same, though proving material harm (beyond the cost of the ticket) would be very hard, and unless the ticket is really expensive or you make it a class action, prosecuting this will be financially infeasible. But if it's done on scale - then yes, as it looks there were successful class actions on lesser grounds than this (not a lawyer and all that stuff, of course, just thinking logically).