Charlie Fairhead, played by Derek Thompson, is a fictional char...wikipedia - 30 Aug 2015
Charlie Fairhead, played by Derek Thompson, is a fictional character from the BBC British medical drama Casualty. He is the longest-serving character having played the role of Charlie for over 30 years and the only remaining original character to have appeared continuously since the first episode on 6 September 1986. Thompson chose to take a nine-month break from the show in early 2004. Charlie left the show in series 18 on 17 July 2004 and after five months, returned on 1 January 2005 in series 19.