She acted in George Bernard Shaw's plays, "The Man of Destiny," and "O' Flaherty VC," at the Duchess Theatre in London, England with Ian McKellen, Bill Wallis, Timothy Carlton, and Sian Phillips in the cast. Robert Kidd and Peter Gill were directors.
Kean's last appearance was in The Real Charlotte (1990). She died in Dublin on 29 December 1993, aged 75. She was predeceased by her husband, William Mulvey, and survived by a son and a daughter, six grandchildren, and three great-grandchildren.