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

Samuel Stewart Witwer is an American actor, voice actor, and musician. He is known for playing Crashdown in Battlestar Galactica, Davis Bloome in Smallville, Aidan Waite in Being Human, Mr. Hyde in Once Upon a Time, and Ben Lockwood in Supergirl. He has voiced Starkiller in Star Wars: The Force Unleashed, the Son in Star Wars: The Clone Wars and Emperor Palpatine in Star Wars Rebels. He has voiced Darth Maul in The Clone Wars, Rebels and Solo: A Star Wars Story. In 2019, he joined the cast of Riverdale as Jughead Jones' school teacher Mr. Rupert Chipping. Witwer voiced protagonist Deacon St. John in the game Days Gone released in 2019 by Bend Studio.

Crista Flanagan is an American actress and comedian, best known for her work as a cast member on the Fox sketch comedy series MADtv from 2005 to 2009, various roles in films made by Jason Friedberg and Aaron Seltzer, and for her recurring role as Lois Sadler on the AMC series Mad Men.

Todd Stashwick is an American actor and writer. He is known for his role as Deacon on Syfy's 12 Monkeys, based on the 1995 film.

Patricia J. Tallman is an American actress, stunt performer, and studio executive best known for her starring roles in Night of the Living Dead, Star Trek and Babylon 5. She is the former CEO and executive producer of Studio JMS.

Melanie Deanne Paxson is an American actress. She is known for her roles as Jaclyn in Cupid, Sara Brennan in Happy Family and as Julie in Notes from the Underbelly. Paxson also appeared in a number of Gladware television commercials in the early 2000s.

Jayne Brook is an American actress, best known for her role as Dr. Diane Grad on the medical drama Chicago Hope, as a series regular for five of the show's six seasons. Between 2017 and 2019, Brook had a recurring role as Starfleet Vice Admiral Katrina Cornwell in the series Star Trek: Discovery.

Brian Van Holt is an American actor. He is best known for playing Bo & Vincent Sinclair in House of Wax and Bobby Cobb on the TV series Cougar Town.

Lisa Darr is an American actress.

Ricco Ross is an American actor.

Alexandra "Alex" Meneses is an American actress and model.