Mark Eugene Suppelsa (born June 25, 1962 in Milwaukee, Wisconsin) is a retired television journalist, who worked most notably for nearly a decade as an investigative reporter and anchor for WGN-TV in Chicago, Illinois.
While in college, he worked as a disc jockey and newsman for the campus radio station, WMUR, and as a reporter and news anchor for Marquette University television.
During Suppelsa's final year of college, he worked over the holidays at WAOW-TV in Wausau, Wisconsin.
In March 2003, Suppelsa left WMAQ-TV to join WFLD-TV in Chicago as a reporter and fill-in anchor.
He says, he quit the radio show in October 2010 because it was simply too many duties to handle in a day after he convinced WGN-TV to hire away his prized investigative producer to work on stories for television.
In May 2012, Suppelsa announced that he would be taking a break from his job at WGN to enter a monthlong alcohol rehabilitation program.