Higgins has appeared onstage in
Paul and
Black Watch, and in the film
Complicity. He played Alan in
Staying Alive, a hospital drama on ITV. He has also played Jamie McDonald, an aggressive press officer, in the
BBC show
The Thick of It and its spin-off feature-length film,
In the Loop. In 2009, he appeared as Gil Cameron on the BBC drama
Hope Springs. He played Michael Dugdale in Channel 4's acclaimed conspiracy thriller
Utopia. In 2013 he appeared in series 1 of the BBC series
Line of Duty and returned for season 4 in 2017. He wrote a play titled
Nobody Will Ever Forgive Us, which was performed at the Traverse Theatre,
Edinburgh in a co-production with the
National Theatre of Scotland in November 2008. ==Personal life==