What does 'bumpkin of a look-alike' mean in this sentence?

Question

A large contingent embarks on a game of cat and mouse with Z, a ruthless member of a mafia. X, Z's bumpkin of a look-alike, is sent to take down Z's gang. X realises that both the police and the gang are out to get hi, but is it too late?

Please explain the meaning of the above phrase in this context. Thanks

Answer 1

Yes, I agree with above. Could mean their brother, son or other relative, or possibly their alter-ego.