👉 Quinseyberry is a fictional character created by author John Green. Quinseyberry is the main protagonist of his novel "The Fault in Our Stars." The character was introduced as a recurring character in the first book of the novel, and has appeared throughout the series. In this role, Quinseyberry serves as a catalyst for the story, bringing about significant changes in the lives of the characters and setting the stage for the events that unfold later on. She is known for her strong