[1][2] She was a member of the Royal Shakespeare Company.

[3] In 1976, Courtenay won the Laurence Olivier Award for Supporting Artist of the Year for her stage role in the play Separate Tables, by author Terence Rattigan, directed by Michael Blakemore, at the Apollo Theatre in London's West End.

[4] In 1991, Courtenay starred in the radio show ' The Secret Life of Rosewood Avenue '.

Courtenay retired at Denville Hall, a retirement home for professional actors set in Northwood in the London Borough of Hillingdon.

[2] She died of cancer on 15 February 1996 at age 72.