Andrew Chapman, whose wife plays Janice Battersby in Coronation Street, reportedly punched fan Michael McWhirter in the face when he asked for a photograph with the actress.
According to the BBC, 48-year-old Chapman claimed that McWhirter had looked "menacing" and that Entwistle was left feeling "intimidated and vulnerable" after he approached them.
The judge told Chapman: "You have been convicted of an unpleasant attack on this person. This young man was simply trying to take a photo. You became far more protective of your wife than you needed to be and lost your temper."