Her career started as a child in the television series
Woof! She appeared in two television productions written by Sally Wainwright, Sparkhouse (Red Production Company/BBC, 2002) and Jane Hall (Red Production Company/ITV1, 2006). Between 2008 and 2012, she played Ann-Britt Höglund in Wallander'', nine feature-length adaptations of
Henning Mankell's
Wallander novels, for the BBC. Smart has also been featured in several radio dramas. In 2011, she appeared in a two-part story for the sixth series of the BBC series
Doctor Who as the sympathetic "villain" of
The Rebel Flesh/
The Almost People. ==Selected filmography==