Charlotte Lockwood is a fictional character from the novel "The Last House on Needless Street" by Catriona Ward. She is depicted as a complex individual with a troubled past, navigating themes of trauma and survival throughout the story. In the narrative, Charlotte's experiences intertwine with those of other characters, creating a suspenseful atmosphere. Her journey explores the impact of memory and perception, making her a pivotal figure in the unfolding mystery of the plot.