cheat — When someone cheats, they do not obey a set of rules which they should be obeying, for example in a game or exam.
con artist — A con artist is someone who tricks other people into giving them their money or property.
perjurer — to render (oneself) guilty of swearing falsely or of willfully making a false statement under oath or solemn affirmation: The witness perjured herself when she denied knowing the defendant.
phony — not real or genuine; fake; counterfeit: a phony diamond.
storyteller — a person who tells or writes stories or anecdotes.
deceiver — to mislead by a false appearance or statement; delude: They deceived the enemy by disguising the destroyer as a freighter.
raconteur — a person who is skilled in relating stories and anecdotes interestingly.
bard — People sometimes refer to William Shakespeare as the Bard.
biographer — Someone's biographer is a person who writes an account of their life.
minstrel — a medieval poet and musician who sang or recited while accompanying himself on a stringed instrument, either as a member of a noble household or as an itinerant troubadour.
relator — a person who relates or tells; narrator.