Jessica Martin
From Tardis Wiki, the free Doctor Who reference
Jessica Martin played Mags in The Greatest Show in the Galaxy and provided the voice of Queen Elizabeth II in Voyage of the Damned. She also voiced Janet Green in the Big Finish Doctor Who audio story Signs and Wonders and Deputy Surveyor Sutton in Last of the Colophon.
She also contributed to the charity reference book Behind the Sofa: Celebrity Memories of Doctor Who.
