Maggie Smith refused to appear on Broadway in "Lettice and Lovage" unless Tyzack was also allowed to join the cast.
Although she played Antonia Minor, the niece of the first Roman Emperor Augustus who was 27 years her senior, in "I, Claudius" (1976), she was more than six years older than Brian Blessed, who played Augustus.
Began her professional career in the early 1950s at a repertory company in central England, where for two years she performed in a play a week, for almost 50 weeks a year.
Educated in RADA after attending Angela's Ursuline convent in England, UK. Is now an associate member at RADA.
Grew up in Greater London (formerly West Ham) and attended the all-girls St Angela's Ursuline School in Newham.
Her husband Alan Stephenson was a mathematics professor.
Joining the Royal Shakespeare Company in 1962, Margaret was known for her regal stance and added a gallery of queens to her credits over the years, including Queen Anne, Queen Mary and Queen Elizabeth II.
Mother of son, Matthew Stephenson (born in 1964).
She was awarded a Laurence Oliver Theatre Award in 1982 (1981 season) for Best Actress in a Revival, Who's Afraid of Virginia Woolf?
She was awarded the CBE (Commander of the Order of the British Empire) in the 2010 Queen's New Years Honours List for her services to drama.
She was awarded the O.B.E. (Officer of the order of the British Empire) in the 1970 Queen's New Year's Honours List for her services to drama.
Was Emmy-nominated for Best Dramatic Actress (Limited Episodes) in 1972 for her title performance in "Cousin Bette" on Masterpiece Theatre. She lost out to Susan Hampshire for her portrayal of Becky Sharp in "Vanity Fair."
Was the daughter of Doris (née Moseley) and Thomas Edward Tyzack.
Won Broadway's 1990 Tony Award as Best Actress (Featured Role - Play) for "Lettice and Lovage." She had previously been nominated for a Tony in the same category in 1983 for Shakespeare's "All's Well That Ends Well."