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

Mark DeCarlo is an American actor, television host, comedian, travel, internet personality, and foodie expert. He is currently known for being a contributor to WLS-TV morning show Windy City Live, a locally produced Chicago program that replaced The Oprah Winfrey Show following its 2011 ending. DeCarlo has been awarded three local Emmy Awards for his work on Windy City Live.

Martha Sleeper was a film actress of the 1920s–1930s and, later, a Broadway stage actress. She studied dancing for five years with Russian ballet master, Louis H. Chalif, at his New York dancing studio. Her first public exhibitions were at Carnegie Hall at his class exhibitions.

Jeffrey Lieber is an American screenwriter for both television and film. He is credited as a co-creator of the television series Lost. In addition to writing for television and film, Lieber also blogs at the website dailykos. His blog posts, which appear as "diaries" rather than front-page posts, typically have a satirical take on the news.

Irwin Kostal was an American musical arranger of films and an orchestrator of Broadway musicals.

Meagen Fay is an American actress known for her work in television.

Vincent du Vigneaud was an American biochemist. He won the 1955 Nobel Prize in Chemistry "for his work on biochemically important sulphur compounds, especially for the first synthesis of a polypeptide hormone," a reference to his work on the cyclic peptide oxytocin.

James Daniel "BJ" Bjorken is an American theoretical physicist. He was a Putnam Fellow in 1954, received a BS in physics from MIT in 1956, and obtained his PhD from Stanford University in 1959. He was a visiting scholar at the Institute for Advanced Study in the fall of 1962. Bjorken is Emeritus Professor in the SLAC Theory Group at the Stanford Linear Accelerator Center, and was a member of the Theory Department of the Fermi National Accelerator Laboratory (1979–1989).

Nick Manning is an American pornographic actor and director. He has made several mainstream appearances, including Crank: High Voltage, Hogan Knows Best, and Sons of Anarchy. Manning portrayed a strip club owner in the 2011 independent film Cherry Bomb, his first non-pornographic lead role. In 2014, he was inducted into the AVN Hall of Fame.

James Burton Serrin was an American mathematician, and a professor at University of Minnesota.