Ronald was a regular in the TV series His and Hers (1970–72). Apart from a role in Friends (1971) and its sequel Paul and Michelle (1974), his final credits were in TV: Tales of Unease (1970), Hine (1971), [The Rivals of Sherlock Holmes (1973), Harriet's Back in Town (1973), Nightingale's Boys (1975), Public Eye (1975), and Crown Court (1974–75).
He was meant to be First Voice in a production of Under Milk Wood at Theatr Gwynedd in 1975. He stopped drinking to prepare himself for the role, but wound up having a heart attack on opening night. He kept working on TV for a time in series like Big Boy Now! (1976), Warship (1977), The XYY Man (1977) and Z Cars (1978). In 1981 he was declared bankrupt with debts of £21,188