1) Bad hat 2) Charlton Comics superhero 3) Cut-up 4) DC Comics supervillain 5) Hoaxer 6) Mischief-maker 7) Practical joker 8) Tricker 9) Trickster 10) Trouble maker 11) Troublemaker 12) Troubler 1) Brat 2) Cutup 3) Hoaxer 4) Imp 5) Jester 6) Tricker 7) Trickster 8) Wag 
A prankster is a person who plays a prank. Prankster may also refer to: ...
[n] - someone who plays practical jokes on others
cut-up noun someone who plays practical jokes on others
a mischievous or malicious person who plays tricks, practical jokes, etc., at the expense of another.