Derek Osborne Hart (18 March 1925 – 23 November 1986) was a British actor, journalist and radio presenter best known for his appearances on the BBC's current affairs programme of the 1950s and 1960s, Tonight.
[2] As an interviewer, Hart's subjects included Lon Chaney Jr and John Wyndham.
[4] In 1968 he hosted a series of arts programmes, Tempo, in the course of which he interviewed major theatrical figures such as Michael Hordern and Sybil Thorndike.
He also narrated documentaries on subjects such as The Industrial Relations Act: An Introduction (1971) and W. Somerset Maugham (1969).
Other major figures interviewed by Hart in the course of his career included Dennis Potter,[5] Terence Rattigan[6] and Sir John Gielgud.