Jon Rollason (9 April 1931 – 20 February 2016) was an English television actor, broadcaster and writer. He is best remembered for the role of Dr. Martin King in The Avengers. He appeared in episodes of Doctor Who (as Harold Chorley in The Web of Fear), Z-Cars, Coronation Street, Softly, Softly, and the soap opera Crossroads. For the last of these, he also wrote the scripts for some episodes.[4]