Former "Windy City Rehab" co-star Donovan Eckhardt is suing HGTV’s parent company and the production studio behind the popular home remodeling series, claiming defamation and emotional distress brought on by what he alleges was a "humiliating" and "villain" portrayal during the second season of the show. The ex-business partner, contractor and developer associate of series co-star, Alison Victoria, filed a suit in Illinois’ Cook County Circuit Court on Monday against Discovery Inc.