Helga Jace

Dr. Helga Jace is a fictional character in the DC Comics Universe. She is a supporting character of the Outsiders and a scientist responsible for giving Princess Tara/Terra and her elder brother Prince Brion/Geo-Force their earth-controlling powers. Helga Jace has appeared in the animated TV series Young Justice, voiced by Grey DeLisle, and the live-action TV series Black Lightning, portrayed by Jennifer Riker.