Oscar Isaac acted in X-Men: Apocalypse.
Constance Shacklock OBE -LRB- 1913 -- 1999 -RRB- was an English contralto .. OBE. OBE. contralto. contralto. After more than a decade of roles with the Covent Garden Opera Company , with other companies and on the concert stage , Shacklock performed for six years in The Sound of Music in London as the Mother Abbess .. Covent Garden Opera Company. Royal Opera, London. The Sound of Music. The Sound of Music. She taught singing at the Royal Academy of Music from 1968 to 1978 .. Royal Academy of Music. Royal Academy of Music