This is a request by  mirandahampton95 for Giulia Marvaldo of Disney-Pixar's Luca being bound and gagged.

Giulietta "Giulia" Marcovaldo is the tritagonist of the 2021 Disney-Pixar animated feature film, Luca. Staying with her father in Portorosso for the summer, she befriends Luca and Alberto and tries to help them win the Portorosso Cup.

Giulia was born to Massimo Marcovaldo, a fisherman, and an unnamed mother, an artist. At some point in her childhood, her parents separated, with Massimo living in Portorosso and her mother living in Genoa. Giulia stayed with her mother and her pet dog, Nerone, and attended school for most of the year, but stayed with Massimo and his pet cat, Machiavelli, for summer break. Her summers in Portorosso often ended in misery, however, as her participation in the Portorosso Cup race resulted in humiliation from the town bully Ercole Visconti. During the year prior to the film's Portorosso Cup race, Giulia lost due to getting sick from eating too much pasta, causing her to be nicknamed "Spewlia" by Ercole.

Giulia described herself as an underdog who was different from the rest of the crowd as a way to explain her reasoning for standing up for Luca and Alberto; her dislike for Ercole because of being bullied by him often also helped fuel her actions. She tried to paint herself as someone independent at first, as she was reluctant to accept help from runaways, but began to open up to the two boys when they helped dislodge her bike from an out-of-place stone brick.

After losing and embarrassing herself at the Portorosso Cup race one time, Giulia wanted to compete in the race where she developed a strong desire to win and beat Ercole, the five-time champion, in order to get payback at him for always making her life miserable. However, Giulia later reveals her strong desire to win is also a way for people to accept for who she is as she has been bullied due to being considered weird, especially after being humiliated during the last time she entered the Portorosso Cup race.

As she gets to know Luca better, she tells him more about herself, including her interest in stargazing and her school in Genoa. Her giving her book on the universe away to Luca suggests that those she meets earn her trust after a period of time spent together with the person.

Giulia did not believe in sea monsters, and was frightened when Alberto revealed himself as one. She later discovered that Luca was one too, but knew they meant no harm and asked Luca to leave town as she feared for his safety. Giulia stood up for Luca and Alberto against Ercole, and their friendship strengthened.