Jenna Duffy also known as The Carpenter was an enemy of Batman and a member of the Wonderland Gang.
Jenna was operating Keystone City as a con artist and a pickpocket. When she began getting unwanted attention from the police, she donned the name Carpenter and left for Gotham City. Tweedledee and Tweedledum invited the Carpenter to join the Wonderland Gang. The Carpenter accepted the invitation and joined the gang led by Mad Hatter. Batman investigates the Gang's crimes and tracks them down to the Gotham Amusement Park where he fights the Gang and they were defeated by the Dark Knight.
In the Gotham City Sirens series, the Carpenter was hired by Catwoman to reconstruct the Siren's hideout. Poison Ivy and Catwoman called her to help them and the Carpenter arrives to aid the two. Catwoman later paid the Carpenter extra for her aid.