List of Famous people born in Illinois, United States of America

Helen Mack was an American actress. Mack started her career as a child actress in silent films, moving on to Broadway plays, and touring one of the vaudeville circuits. Her greater success as an actress was as a leading lady in the 1930s. Eventually Mack transitioned into performing on radio, and then into writing, directing, and producing some of the best known radio shows during the Golden Age of Radio. Later in life, Mack wrote for Broadway, stage, and television. Her career spanned the infancy of the motion picture industry, the beginnings of Broadway, the final days of Vaudeville, the transition to "talking pictures", the Golden Age of Radio, and the rise of television.

Ron Dean is an American film and television actor. He appeared in films including Rudy, Risky Business, The Breakfast Club, Cocktail, The Babe, The Fugitive, The Client, and The Dark Knight. He is known for often playing detectives and other law-enforcement characters, most notably Det. Marion Zeke Crumb in the television show Early Edition.

John Francis Seitz, A.S.C. was an American cinematographer and inventor.

Lafayette S. "Lafe" McKee was an American actor who appeared in more than 400 films from 1912 to 1948. Part of his career was spent with Art Mix Productions. McKee also worked as a stage actor from 1910 until at least 1932, and began working in show business in 1893.

Jonathan Benjamin Edwards is an American professional baseball pitcher for the Hanshin Tigers of the Nippon Professional Baseball(NPB). He has played in Major League Baseball (MLB) for the Texas Rangers, San Diego Padres, and Cleveland Indians.

Thomas Joseph "Tom" Mooney was an American political activist and labor leader, who was convicted with Warren K. Billings of the San Francisco Preparedness Day Bombing of 1916. Believed by many to have been wrongly convicted of a crime he did not commit, Mooney served 22 years in prison before finally being pardoned in 1939.

Oliver Henry Nelson Shoup was the 22nd Governor of Colorado from 1919–1923.

Knute Hill was a U.S. Representative from the state of Washington. He was known by the nickname "the Little Giant".