Adjoa Andoh (born 1962) 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 audio book version of Wooden Heart and voiced Nurse Albertine in Year of the Pig.
Outside of Doctor Who, she appeared in the BBC medical drama Casualty from 2001 to 2003 as Colette Griffiths.