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

Gary Dean Richrath was an American guitarist, best known as the lead guitarist and a songwriter for the band REO Speedwagon from 1970 until 1989.

Mia Isabella is an American transgender pornographic actress.

George Albert "Scotty" Bowers was an American who was a United States Marine and, from the 1940s to the 1980s, a Hollywood pimp. Stories of his exploits circulated for many years and were alluded to in books such as Hollywood Babylon. Bowers’ claims were met with both praise and skepticism.

Michael Søren Madsen is an American actor, producer, director, writer, poet and photographer. His first major film role was in Thelma & Louise (1991), and he is best known for working with director Quentin Tarantino in the role of Mr. Blonde in Reservoir Dogs (1992), as Budd in both segments of Kill Bill, and appearing in The Hateful Eight (2015) and Once Upon a Time in Hollywood (2019). Known for playing "charming, careless, terrifying bastards", Madsen has also starred in many feature films and television series, and has done voice work for video games.

Barbara Densmoor Harris was an American actress. She appeared in such movies as A Thousand Clowns, Plaza Suite, Nashville, Family Plot, Freaky Friday, Peggy Sue Got Married, and Grosse Pointe Blank. Harris won a Tony Award and was nominated for an Academy Award. She also received four Golden Globe Award nominations.

Gloria Josephine May Swanson was an American actress, producer and business woman. She first achieved fame acting in dozens of silent films in the 1920s and was nominated three times for an Academy Award as Best Actress, most famously for her 1950 comeback in Billy Wilder's Sunset Boulevard, which also earned her a Golden Globe Award.

Dorothy Emma Rodham was an American homemaker and the mother of former First Lady, U.S. Senator, United States Secretary of State, and 2016 Democratic Party presidential nominee Hillary Rodham Clinton.

Alexa Nikolas is an American actress. She is known for her role as Nicole Bristow on the Nickelodeon television series Zoey 101. Nikolas has also appeared on various other television series, including That's Life, Hidden Hills, Revelations, and The Walking Dead.

Christopher Eugene O'Donnell is an American actor and former model. He played Charlie Sims in Scent of a Woman, Chris Reece in School Ties, D'Artagnan in The Three Musketeers, Jack Foley in the drama film Circle of Friends, Dick Grayson/Robin in Batman Forever and Batman & Robin, Jason Brown in Robert Altman's Cookie's Fortune, Peter Garrett in Vertical Limit, and Wardell Pomeroy in Kinsey. O'Donnell stars as special Agent G. Callen on the CBS crime drama television series NCIS: Los Angeles, a spin-off of NCIS.

Donna Mills is an American actress. She began her television career in 1966 with a recurring role on The Secret Storm, and in the same year appeared on Broadway in the Woody Allen comedy Don't Drink the Water. She made her film debut the following year in The Incident. She then starred for three years in the soap opera Love is a Many Splendored Thing (1967–70), before starring as Tobie Williams, the girlfriend of Clint Eastwood's character in the 1971 cult film Play Misty for Me.