Agar has performed at the
National Theatre in
The Man of Mode as Harriet, alongside
Tom Hardy and
Hayley Atwell. Other stage work includes the
Orange Tree Theatre,
Soho Theatre,
Riverside Studios with
Ed Stoppard, and
Hampstead Theatre. She played Dr Anvar "Annie" Parvez in the television series
Murder City. She appeared as a guest artist (twice) in
Holby City, on
EastEnders,
Totally Frank,
Green Wing,
Doctors and
The Bill. In 2009
WhatsOnStage named her as one of the "exciting young actors" of 2009 for her portrayal of Marian in Clare Bayley's
The Container at the
Young Vic directed by Tom Wright, with
Abhin Galeya and Doreene Blackstock. Also in 2009 she appeared as campaigner Yasmin Khan in
This Much is True at
Theatre503, directed by Tim Roseman and written by
Paul Unwin, and also featuring
Justine Waddell and
Gerald Kyd. The show was based on first hand accounts of the
Jean Charles de Menezes case, including testimony heard for the first time. In 2010 she appeared in
Lewis; with
Brenda Fricker in a special episode of
Casualty; and in a lead guest role in the penultimate episode of
Waking The Dead (aired early in 2011). In 2011 she started rehearsals for
Reading Hebron at the Orange Tree Theatre. She appeared as Detective Inspector Christina Marlowe in the first two series of
Shakespeare & Hathaway: Private Investigators in 2018 and 2019. == Writing ==