Thirteen-year-old Daniel is the main protagonist and narrator of OCDaniel, as well as the near autobiographical representation of King at Daniel’s age. Daniel wishes to be “normal” and fit in but describes himself as “crazy” (1), “nuts” (9), and “completely bonkers” (1). Daniel lives with OCD, which causes him to perform rituals and routines to assuage crippling and painful attacks of anxiety. He struggles to reconcile his desire for social acceptance and normality with his condition, which seems to persistently sabotage this quest, seen most notably in his flicking of the switch at the school dance.

He is writing a book called The Last Kid on Earth, which serves as a metaphor for his battle with OCD and the isolation it causes. Daniel is secretive about his book and his OCD. However, due to his involvement and adventures with Sara, he learns to understand and open up about his condition. He also learns to modify his understanding of what it means to be “normal,” and his desire for normalcy. This is demonstrated through his changing attitudes towards Sara and Raya. Initially, he is interested in Raya, who represents conventional success and normality. He then realizes his true connection is with Sara, who represents the unconventional and supports Daniel on his journey towards healing.