This included the St Trinian's films (The Belles of St Trinian's, Blue Murder at St Trinian's and The Grteat St Trinain's Train Robbery), as "Manton Bassett", a Civil Servant who was the Deputy Director of Schools in the Ministry of Education, where he was often seen frowning and expressing indignation at the outrageous behaviour of other characters.
Other films included Hay Fever, Hobson's Choice, Chitty, Chitty,Bang, Bang, Carry On Spying, The Colditz Story, Dentist on the Job, Very Important Person, The Happiest Days of your Life and even The Longest Day, among many others.
Richard Wattis also appeared on television, including a long-running role opposite Eric Sykes and Hattie Jacques in Sykes as their next-door neighbour, and appearances in Danger Man, The Prisoner, The Goodies, Hancock's Half Hour and Father Dear Father. In 1957-1958, he appeared as Peter Jamison in three episodes of an American Sitcom filmed in England, Dick and the Duchess, starring Patrick O'Neal and Hazel Court.
Richard was a gay man in an era when this was a taboo subject. He died of a heart attack in a Kensington restaurant in 1975 aged 62 years, in the middle of his favourite meal and claret.