[3][4] In 1962 she appeared in Alastair Dennett's play Fit to Print, as part of the Peter Haddon Company then resident at the Wimbledon Theatre.
[5] In 1963 Barrington was part of the Alexandra Repertory Company at The Alexandra, Birmingham; she appeared in plays including Fish Out of Water by Derek Benfield, Noël Coward's Hay Fever, Jean Anouilh's Becket and W. Somerset Maugham's The Constant Wife.
[10][11] Later in the year she appeared in Elmer Blaney Harris's Johnny Belinda at the Theatre Royal, Bath.
[13] In 1971 Barrington played Hippolyta / Titania in A Midsummer Night's Dream at the Neptune Theatre, Halifax, Nova Scotia.
[18] Some time before 1996, Barrington notified Equity that she was taking a break from acting, and as of 2005 she had not returned to the profession.