Walter Lee is a central character in the play "A Raisin in the Sun" by Lorraine Hansberry. He is a young African American man living in Chicago in the 1950s, struggling to provide for his family. Walter dreams of a better life and is determined to invest in a liquor store to achieve financial success. Walter's aspirations often lead to conflict with his family, particularly with his mother, Lena Younger, and his wife, Ruth. Throughout the play, he grapples with issues of identity, pride, and the impact of systemic racism on his dreams. Walter's journey reflects the broader struggles of African Americans during that era.