She is the daughter of bioengineers Dale and Stacey Yorkes.
Gert has no superpowers, but she is at the peak of physical and mental condition. She is an accomplished acrobat, an expert hacker, an expert driver, and she is highly skilled in kung fu, karate, Jeet Kune Do, and Krav Maga.
Gert is a strong believer in the concept of justice, having increasingly progessive ideas regarding gender, racial and social equality. She views those who prey on the innocent as having failed society as a whole.
Gert is psychically linked with Old Lace, a dinosaur brought back to life due to Dale and Stacey's experiments. Since Gert has no special powers or weapons, she often has to rely on Old Lace to help her during combat. Old Lace is a trusted ally of Gert.