David Schearl is a fictional character from the novel "The Man Who Was Thursday" by G.K. Chesterton. He is depicted as a complex individual who grapples with themes of identity and existentialism throughout the story. His character serves as a representation of the struggle between order and chaos in a rapidly changing world. In the narrative, David Schearl is involved in a series of surreal and philosophical events that challenge his perceptions of reality. The novel explores his interactions with other characters, including members of a secret society, highlighting the tension between individual beliefs and societal expectations.