Annabelle Dowler

 played several parts, both for Doctor Who on television and also several of the Big Finish audios and spin-offs.

Doctor Who

 * The Snowmen - Walter Simeon's mother

The Diary of River Song

 * Barrister to the Stars - Integers / Contingent / Queen

The Robots

 * The Robots of Life - Jasdar Crick
 * Love Me Not - Robot Jasdar Crick