Bigger Thomas is the main character in the novel "Native Son" by Richard Wright. He is a young African American man living in 1930s Chicago, struggling with poverty and systemic racism. Bigger's life is marked by feelings of anger, fear, and hopelessness, which ultimately lead him to make tragic choices. Throughout the story, Bigger grapples with his identity and the societal pressures that shape his actions. His experiences reflect the broader themes of racial injustice and the impact of environment on individual behavior, making him a complex figure in American literature.