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

Mark Lenard was an American actor, primarily in television. His most famous role was as Sarek, father of Spock, in the science fiction Star Trek franchise, in both the original and animated series, as well as three films and two episodes of Star Trek: The Next Generation. He also played a Klingon in Star Trek The Motion Picture, and a Romulan in an episode of Star Trek: The Original Series.

David J. Rothkopf is a professor of international relations, political scientist and journalist. He is the founder and CEO of The Rothkopf Group, a visiting scholar at the Carnegie Endowment for International Peace, a visiting professor at the Paul H. Nitze School of Advanced International Studies at Johns Hopkins University, and a prolific author.

Harold Goodwin was an American actor who performed in over 225 films.

Charles Ray is a Los Angeles-based American sculptor. He is known for his strange and enigmatic sculptures that draw the viewer's perceptual judgments into question in jarring and unexpected ways. Christopher Knight in the Los Angeles Times wrote that Ray's "career as an artist…is easily among the most important of the last twenty years."

James Lusk Alcorn was a Republican governor and a U.S. senator during the Reconstruction of his adopted state of Mississippi.

Charles Wayland Bryan was an American politician who served as the 20th and 23rd Governor of Nebraska, and Mayor of Lincoln, Nebraska, and was the Democratic nominee for Vice President in 1924. He was the younger brother of Secretary of State William Jennings Bryan, who was the Democratic nominee for President in 1896, 1900, and 1908. The Bryans are the only brothers who have been nominated for President or Vice President by a major political party.

Robert Emmett "Bob" McGrath is an American actor, singer, musician, and children's author best known for playing original human character Bob Johnson on the long-running educational television series Sesame Street.

Daniel William Kucera, OSB was a bishop of the Catholic Church. He served as an Auxiliary Bishop in Joliet (1977–1980), the Bishop of Salina (1980–1983), and as the Archbishop of Dubuque (1983–1995).