Freema Agyeman

Going from Doctor Who to Dickens and back again was a snap for award-winning actress Freema Agyeman.
She started on the British soap opera CrossRoads, movied on to guest-star roles on prime-time series, and landed the role of the Tenth Doctor Who's companion (after guest starring as another character) all within a four-year span!
Talk about meteoric!
In addition, she appeared in the acclaimed BBC production of Charles Dickens' Little Doritt (as Tattycoram) and a remake of the 1970s post-apocalyptic tv series Survivors!
She's also done Doctor Who and Torchwood audiobooks and animation voice work (on Doctor Who: The Infinite Quest).
Currently, she's starring as Crown Prosecutor / Solictor Advocate Alesha Phillips (equivalent to an American assistant district attorney) on Law & Order: UK. but it's a fair bet she'll show up somewhere in the Whoverse before too long...
Trivia: Freema is a spokesperson for Divine Chocolate, an ethical corporation that helps Ghanaian cocoa farmers make a fair living.

Genre appearances include...
Law & Order: UK
(Crown Prosecutor and Solicitor Advocate Alesha Phillips)
Survivors [2008] (Jenny Walsh)
Bizarre ER (Narrator)
Doctor Who / Torchwood / Infinite Quest
(Dr Martha Jones-Smith / Adeola Oshodi [Martha's cousin])
The Bill (Shakira Washington)
Silent Witness (Mary Odgen)

Check out...
Freema's FaceBook page
Freema's Bebo page
Freema Agyeman.com (FanSite)
Freema Agyeman.org (FanSite)