The Joker returns to haunt the Caped Crusaders, this time with a new member added to his gang: Gaggy, who makes The Joker laugh, which then inspires the Clown Prince of Crime with new crime ideas.
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Mark Waid, Geoff Johns, John Broome, Gardner Fox, Len Wein, Cary Bates, Bob Kanigher, Marv Wolfman, Francis Manapul, Brian Buccellato, William Messner-Loebs, Scott Kolins, Mike Wieringo, Alberto Dose, Ethan Van Sciver, Carmine Infantino, Ross Andru, Irv Novick, Andy Kubert, Harry Lampert, Everett Hibbard, Mike Collins & George P�rez