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

Brad Wood is an American record producer located in Los Angeles. He has produced many albums, including Liz Phair's Exile in Guyville and Placebo's debut.

Ruth Jane Mack Brunswick, born Ruth Jane Mack, was an American psychiatrist. Mack was initially a student and later a close confidant of and collaborator with Sigmund Freud and was responsible for much of the fleshing out of Freudian theory. Dr. Brunswick was charming, intelligent, feminine, and vivacious. Her generosity drove her to help many of her friends to leave Austria once the Nazis invaded it. She also had to leave Vienna to save her own life. Dr. Brunswick pioneered the psychoanalytic treatment of psychoses, and the study of emotional development between young children and their mothers, and the importance of this relationship in creating mental illness.

Bradford Ernest Sullivan was an American character actor on film, stage and television. He was best known for playing the killer Cole in The Sting, hockey goon Mo Wanchuk in Slap Shot, mobster George in The Untouchables (1987) and the gruff Henry Wingo in The Prince of Tides (1991).

Caroline Kava is an American actress and playwright of the 1986 Off-Broadway play, The Early Girl.

Lester Halbert Germer was an American physicist. With Clinton Davisson, he proved the wave-particle duality of matter in the Davisson–Germer experiment, which was important to the development of the electron microscope. These studies supported the theoretical work of De Broglie. He also studied thermionics, erosion of metals, and contact physics. He was awarded the Elliott Cresson Medal in 1931.

Brad Morris is an American actor and television writer. He starred in Playing House and had recurring roles on Cougar Town as Jerry from 2013 to 2015, for which he also wrote five episodes, Great News from 2017 to 2018, and Dice from 2016 to 2017.

Robert Parker Jameson was an American singer-songwriter who was briefly promoted as a major star in the early 1960s and later attracted a cult following with his 1965 album Songs of Protest and Anti-Protest, issued under the name Chris Lucey. The album's dark lyrics and sophisticated arrangements led its advocates to note similarities with Love's 1967 album Forever Changes. For decades, little was known about Jameson or his origins, and he was more famous for engaging in public disturbances and suicide attempts than his music.