She was introduced in the series when Marian Janssen, the Director of Itexicon headquarters, held a viewing of all the experiments created in their labs.
She was described as having razor-sharp fangs—sharper than an Eraser's—and a long trail of leopard spots going down her spine. She was also wearing a jumpsuit at the time of the viewing. In the sixth manga volume, she was depicted as having long, dark hair.
Mara had amazing cat-like abilities, such as the strength to leap to high extents and cling to walls.
- It is unknown what her fate was when the apocalypse came.