Actress, artist, writer, singer and impressionist Jessica Martin shot to fame in the early 1980s as a regular on a variety of prime time TV shows. Impressions of characters like Margaret Thatcher and Hilda Ogden were spot on, but she was even better known for her amazing singing impressions: Streisand, Garland, Monroe, Cilla and many more. Here she discusses her career, vocal techniques and graphic novels.