Gia Campbell (Marisa Ramirez)

 Gia Campbell was a fictional character on the ABC daytime soap opera General Hospital. She was portrayed by actress Marissa Ramirez from July 2000 to 2002 and Andrea Pearson from 2002 until 2003, when the character left town. Gia was apart of General Hospital's "Teen Scene" in the early 2000s along with Emily Bowen-Quartermaine, Nikolas Cassadine, Lucky Spencer and Elizabeth Webber. She is the daughter of Florence Campbell, the sister of Marcus Taggert and the ex-fiancée of Nikolas.

Arrival
Gia arrived in Port Charles in July 2000. While at a rave, she saw Emily Bowen-Quartermaine leave and go to a hotel with an older man, who in actuality was an undercover cop. Gia immediately assumed that Emily was using drugs and since Emily was a Quartermaine and was supposed to be "prim" and "proper" Gia decided to used this as ammo to blackmail her. Gia's blackmail did not sit well with Emily's friends Lucky Spencer and Elizabeth Webber, but when the truth came out that Emily was not using drugs, Gia learned all about the murder mystery and the undercover cop. Reluctantly Gia agreed to begin working with the other teens to try and catch Zander Smith, the suspected murderer.

Nikolas Cassadine
After working together to solve the mystery, Gia grew close with Nikolas Cassadine and they formed a friendship of sorts. She was in need of a place to live and Nikolas graciously allowed her to take the spare room in his cottage rent free. Gia's mother Florence Campbell was already unhappy with Gia's decision to drop out of college and when she heard of her daughter's new living arrangement, she was livid and demanded that Gia return home with her. But Gia remained set on staying with Nikolas and tried to find away to provide for herself. She got a job as a public relations assistant for AJ Quartermaine's football team to try and pay her own way and not have to rely on her mother or give into her demands. Gia continued to live with Nikolas and as they grew closer, they finally gave into their attraction and made love. Shortly thereafter, they started dating. Gia then reached out to new endeavors and aspired to be the new Face of Deception, a signature model for the cosmetic company owned by Laura Spencer, Nikolas' mother. Gia was up against her rival Elizabeth for the part and played dirty to ensure that Elizabeth wouldn't be chosen. Laura wanted Elizabeth to be the model, but Laura's partner Carly Corinthos was positive that Gia was the better choice. Behind Laura's back, Carly arranged for Gia to do a photo shoot with Lucky. On the night Laura was going to announce Elizabeth as the new Face, Carly had Gia lock Laura on the roof of General Hospital to stop her. After realizing that Elizabeth didn't want the job anyway and seeing the amazing pictures of Gia, Laura named Gia as the new Face of Deception.

Things were finally looking up for Gia, but that all came to a startling halt when Nikolas dumped her. What Gia didn't know was that this move was part of a scam to protect Lucky and to find out once and for all what Nikolas' grandmother Helena Cassadine was up to. Nikolas was still in love with Gia, but he pretended to want Elizabeth to make Helena happy. Heartbroken, Gia tried to move on with her life and briefly dated Lucien Cane, a man that Lucky despised for unknown reasons. During this time Gia also formed a closer friendship with Lucky Spencer and the two even shared a kiss after Helena erased all of Lucky's memories, effectively erasing his love for Elizabeth. Gia figured out that Helena was behind Lucky's sudden loss of love for Elizabeth and decided to help him. She distracted Helena in order to help Elizabeth steal the Ice Princess, the key to Lucky's programming and reversing the memory loss. Gia tried to reunite with Nikolas and the two even shared a kiss on the docks, but Nikolas quickly went back to his act and cast her aside. In retaliation, Gia attempts to make Nikolas jealous by dating Lucien in front of him. After their date, Lucien tried to sleep with Gia, but she denied him because she was still in love with Nikolas. She decided that Nikolas needed to get away from the Cassadines and she tried to get Elizabeth to help her, but when she refused, Gia realized that Elizabeth and Nikolas weren't really in love. She went to confront Nikolas and overheard Helena telling him to kill Elizabeth. Gia freaked out and tried to warn Elizabeth and she even attempted to protect her from Nikolas. When neither Lucky nor the cops would help her, she went to try to stop Nikolas herself, but she realized that she was too late when she found Nikolas with a "dead" Elizabeth.

As Gia was threatening to call the police and telling Nikolas what a horrible person he was, Elizabeth woke up, much to her relief. Nikolas then filled Gia in on the plan and she forced Nikolas to let her help him. After being honest with one another they reconciled and made love. Nikolas told Gia all about meeting his father and she comforted him seeing that he was obviously upset. Later, she found a picture of Nikolas with his father Stavros Cassadine and realized that the man she had been dating Lucien Cane, was actually Stavros. Before she could warn Nikolas of the deception, Lucien showed up and took her to the room that he had decorated for Nikolas' mother Laura. When Nikolas showed up with Laura, Stavros locked Nikolas in the room with Gia. Stavros and Helena were soon defeated and Gia and Nikolas made it out of Helena's underground maze without getting hurt. After surviving this ordeal, Nikolas and Gia planned to move on with their lives and got engaged to marry. They moved in together at Wyndemere and Gia devoted most of her time to trying to convince Nikolas that he wasn't going to turn into his father. She even gave up her modeling career for him.