Castle's On The Air: Former Cumulus WKDF/Nashville part-timer Renee Castle will join Greater Media WKLB/Boston in nights Monday (2/29). Castle started as an actor, then producer for Hell's Kitchen, Blind Date and other reality TV shows. Her background also includes Westwood One and Top 40 WJXA/Nashville. "Renee brings an enthusiasm and excitement for radio and Boston that is contagious,” says PD Mike Brophey. "Her entertainment experience is awesome and we are elated to have her on our team."