Sally Faulkner
From Tardis Wiki, the free Doctor Who reference
Sally Faulkner (born 1944[1]) played Isobel Watkins in the Doctor Who television story The Invasion. She later voiced Miss Tremayne in the Big Finish Doctor Who audio story Winter for the Adept and General Hannah Brennan in the Big Finish Bernice Summerfield audio story The Secret of Cassandra.