A person who resolves cases of conscience or moral duty.
One who is skilled in, or given to, casuistry.
Someone who attempts to specify exact and precise rules for the direction of every circumstance of behaviour.
One who fakes something.
A friendly unit (usually aircraft) that acts as a hostile unit in a military exercise.
A snake oil salesman; one who makes exaggerated claims about a product he sells.
An impostor or impersonator.