On 13 April 2011, it was announced that for personal reasons she had departed EastEnders and that her role had been recast to Heather Chasen as a result of the nature of the large storyline needing to continue. Honours Tyzack was appointed Officer of the Order of the British Empire (OBE) in the 1970 Birthday Honours and Commander of the Order of the British Empire (CBE) in the 2010 New Year Honours, both for services to drama. Personal life Tyzack married mathematician Alan Stephenson in 1958 and together they had one son, Matthew. Tyzack died on 25 June 2011, at the age of 79. Her agent said she was thought to have been suffering with cancer. Filmography Discography Jerome Kern: Show Boat, conducted by John McGlinn, EMI, 1988 References External links Selected performances in Theatre Archive, University of Bristol Obituary in The Guardian Obituary in The Independent 1931 births 2011 deaths Alumni of RADA Best Actress BAFTA Award (television) winners Commanders of the Order of the British Empire Critics' Circle Theatre Award winners English film actresses English radio actresses English stage actresses English soap opera actresses English television actresses Laurence Olivier Award winners People from West Ham Royal Shakespeare Company members English Shakespearean actresses Tony Award winners