Nimmy March

 voiced several roles in the Big Finish Doctor Who audio stories and spin-offs.

Doctor Who Main Range

 * The Moons of Vulpana - Ulla

Fourth Doctor Adventures

 * Purgatory 12 - Colonel Aesillor Zyre

The Eighth Doctor: The Time War
As Rupa Maguire
 * The Starship of Theseus
 * Echoes of War
 * The Conscrpit
 * One Life

UNIT: The New Series

 * In Memory Alone - Baroness Vance/the Telokni