Stargirl was often fighting alongside her overprotective stepfather. She participated in several missions; most notably she fought off Mordru, the Alien nanotech invasion, the army of Ultimen aboard the Watchtower, the second Royal Flush Gang, a giant mutated Turtle wrecking Japan, and Deimos's army in Skartaris.
Stargirl was a brave and competent fighter; however, her impetuosity sometimes got the best of her performance. In Skartaris, she headed off to confront Deimos alone, and even got the upper hand until Metallo caught her off guard, and knocked her out. Fortunately, she regained consciousness on time to save Supergirl from a hunk of Kryptonite.
Courtney initially resented Supergirl's popularity, and dismissed her merit for being Superman's protégé. While in Skartaris, Stargirl took a somewhat childish relish in seeing Kara in distress, deprived of her powers. However, when she saw how adroit and brave the powerless Supergirl was, Stargirl gained a whole new view on her character, and both girls reconciled.
Some time later, Stargirl attended a commemorative parade in Metropolis in Superman's stead (along with four other heroes), a fact that did not bode well for her. When General Eiling crashed in, Stargirl tried to take the fight somewhere else, away from innocent bystanders, but once again her impulsiveness got the best of her, and Eiling almost crushed her skull with his bare hand. However, thanks to Shining Knight, Stargirl was spared, albeit badly injured. Even though she was badly injured, she managed to flash a smile as she was loaded into the ambulance.
After recovering, Courtney took up active duty in the League's missions, and helped repel Darkseid's invasion forces from Earth.
COMIC BOOK BIO BY COMIC VINEEdit
Courtney Whitmore was born to a couple that broke-up when she was still very young. Courtney wasn't taken by the man that her mother brought home, Pat Dugan. Courtney may not have liked Pat but her mother did, and they eventually got married. Courtney was at the wedding and when she went through his stuff she found the Cosmic Belt. Now knowing about Pat's history as an former superhero, she became Star-Spangled Kid mostly to annoy him. Pat would make a Mech suit to follow her around and thus the team "Stars and Stripes" were formed.