Career
During a live television broadcast of the Armchair Theatre play Underground on the Independent Television network in the United Kingdom on 30 November 1958, Jones suffered a massive heart attack and died while off-camera between two of his scenes. Some contemporary news reports stated that he had suffered the heart attack while on camera, although most references claim that he was stricken while in a make-up chair, between scenes. However, actor Peter Bowles, also in the cast, recalled that "During transmission, a little group of us was talking on camera while awaiting the arrival of Gareth Jones"s character, who had some information for us.
We could see him coming up towards us, but we saw him fall.
We had no idea what had happened, but he certainly wasn"t coming our way". Director Ted Kotcheff and the remaining cast were forced to improvise to carry the play to its conclusion, with producer Sydney Newman ordering Kotcheff to "shoot it like a football match".
Coincidentally, Jones"s character was to have suffered a heart attack during the play. Jones had appeared in three other Armchair Theatre plays in 1958 - "Noon On Doomsday" (6 July 1958), "Trial By Candlelight" (22 June 1958), and "Mission Olive" (6 April 1958).
Other television appearances included the Independent Television Television Playhouse production of "Thunder On Sycamore Street" (October 11, 1957), the British Broadcasting Corporation Television adaptation of Under Milk Wood (May 9, 1957), the British Broadcasting Corporation series "Onion Boys" (1957), and "A Tale Of Two Cities" (1957).
He earlier appeared in Dundee Repertory Theatre plays including "Petticoat Influence" (1952), The Beaver Coat (1952), "The Hollow Crown" (1952), "The Queen"s Husband" (1952), "Young Madame Conti" (1952), and The Lark (1955).