New Hampshire, referred to as EIB – Ice Station Zebra. Dr. Walter E. Williams: economics professor, strong proponent of laissez-faire capitalism, and former chairman of the economics department at George Mason University in Virginia. Williams began guest hosting in October 1992, initially against Limbaugh's wishes as Limbaugh did not believe that Williams, a non-broadcaster, had "paid his dues" in the broadcasting field enough to earn a national guest-hosting gig; Limbaugh relented after hearing Williams's first episode. He left the rotation before 2018. Williams died December 2, 2020. Douglas Urbanski: Award-winning Motion Picture Producer, former Broadway impresario, occasional actor, raconteur, "paying subscriber to Rush 24/7," also known as America's Guest Host, Urbanski first hosted three times in 2010, left the rotation to produce films on location (during which he briefly hosted a competing program on Westwood One) and returned to the substitute host rotation in mid-2012. Erick Erickson: Founder and editor of RedState and radio host at WSB. Erickson first served as substitute host in 2014 before he took over Limbaugh's time slot on March 22, 2021. Chris Plante: Radio host based at WMAL in Washington, DC. Roger Hedgecock: Former mayor of San Diego, California, and a talk radio host at Clear Channel talk station KOGO there. He was, as of 2007, the most used stand-in, and was also a fan favorite. Hedgecock spent several years out of the substitute rotation but has since returned. Ken Matthews: A host on WHP in Harrisburg, Pennsylvania and WPHT in Philadelphia, subbed for Limbaugh on July 3, July 14, September 1, November 24 and December 26, 2017; on June 22, 2018, and again on March 19, 2020. Matthews was later an interim host before the EIB Network announced Clay Travis and Buck Sexton. Matthews hosted the final episode of the program on June 18, 2021. Todd Herman: A host on KTTH in Seattle, Washington, debuted as a guest host for a vacationing Limbaugh on August 24, 2017. He hosted the show on August 25, 2017; on January 2, May 24 and 25, 2018, and again on February 19, 2020. Herman later served as an interim host in 2021. Nick Searcy: An actor who stars on the FX show Justified, he debuted as a guest host for a vacationing Limbaugh on December 27, 2017. Michael Knowles: He debuted as guest host as Limbaugh was undergoing another round of treatments on November 20, 2020. Derek Hunter: