Wallace Price is a fictional character from the novel "The Midnight Library" by Matt Haig. He is depicted as a successful businessman who experiences a life-changing event that leads him to reflect on his choices and the meaning of life. His character serves as a catalyst for exploring themes of regret, fulfillment, and the possibilities of alternate lives. In the story, Wallace's journey takes him through various scenarios that highlight the impact of his decisions. His experiences encourage readers to consider the importance of living authentically and embracing the present moment, making him a relatable figure in the narrative.