Adjoa Andoh
From Tardis Wiki, the free Doctor Who reference
Adjoa Andoh played Sister Jatt in New Earth and Francine Jones in Smith and Jones, The Lazarus Experiment, 42, The Sound of Drums, Last of the Time Lords, The Stolen Earth and Journey's End. She also narrated the abridged audio book version of Wooden Heart, as well as Frozen Beauty from the Time Lord Fairy Tales. She also voiced Nurse Albertine in Year of the Pig, the Racnoss Empress in Empire of the Racnoss, Fiona McAndrew in The Law Machines and Sister Jara in The Cats of New Cairo.
Outside of Doctor Who, she appeared in the BBC medical drama Casualty as Colette Griffiths from 2001 to 2003.