Trickster

noun

1. Any of numerous figures featuring in various mythologies and folk traditions, who use guile and secret knowledge to challenge authority and play tricks and pranks on others; any similar figure in literature.
2. One who plays tricks or pranks on others.
3. One who performs tricks (parts of a magician' act or entertaining difficult physical actions).
4. An impish or playful person.
5. A fraud (person who performs a trick for the purpose of unlawful gain).