Tigress was a teen-aged delinquent, one of Dr. Able Cuvier's original three test subjects who was spliced with the DNA of a tiger, which gave her stripes, claws, and slitted pupils in her eyes. She also had a keen sense of smell, which helped her detect the presence of Batman even while he was cloaked. She was sent by Cuvier to kill District Attorney Young and failed thanks to Batman. Afterwards, Batman used a mutagen antidote to turn Tigress back into her normal form and she was thereafter arrested by the police.