Hammond-Hill was born in St Pancras, London,[1] the daughter of Peter Hammond Hill, an actor, and Maureen Glynne-West, who had married at Westminster in 1948.
[citation needed] Hammond-Hill came to national attention in 1977 as Natalie Chantrens in the BBC television drama series Secret Army (1977–1979), with a central role in all three years of the programme.
[4] In 1980, she played Madeline Bray and other parts in the first Royal Shakespeare Company production of The Life and Adventures of Nicholas Nickleby, staged at the Aldwych Theatre.
[9] At the end of the year, while pregnant with her daughter, she appeared opposite David Bowie as Emilie in the television version of Bertholt Brecht's Baal, first broadcast in March 1982.
[10] In 1983, Hammond-Hill was cast in an episode of Only Fools and Horses, playing Miranda Davenport, an antique dealer who dates Del Trotter.