In the comics, Jennifer is the superheroine known as Lighting. Her father initially forbids his daughters from following in his footsteps as a costumed hero until after they complete their education. However, after seeing the hardships her sister endured while transitioning into crimefighting, she decides to allow Jennifer to join the Justice Society of America.
This is her third animated appearance. She previously appeared in the Thunder and Lightning shorts of the DC Nation Shorts and in DC Super Hero Girls.