Howards' Way star Dulcie Gray has died from bronchial pneumonia, aged 95.
First finding fame in Gainsborough Pictures' melodramas in the 1940s, the actress became best known for her role as Kate Harvey in the BBC One series from 1985 - 1990.
She regularly appeared on stage, television and film opposite her actor husband, the late Michael Denison.
The actress also had a second career as a novelist, penning almost 20 books about dogged sleuth, Inspector Cardiff.
Several of her short stories were published in Herbert Van Thal's Pan Book of Horror stories.
Gray had been living at the actors' residential care home, Denville Hall, in west London, at the time she died on Tuesday.
Born in Kuala Lumpur in 1915 where her father was a lawyer, she trained at the Webber Douglas Academy of Dramatic Art, where she met Denison.
They appeared in more than 100 productions together during their 59-year marriage, including their joint Broadway debut in the first New York production of Oscar Wilde's An Ideal Husband in 1996.
They were both awarded CBEs for services to drama in 1983.
Following Denison's death in 1998, Gray returned to the stage to appear in adaptations of The Ladykillers and The Lady Vanishes.
She last appeared on screen in 2000 in an episode of BBC drama Doctors.