Nicola Walker

A recognisable face of British TV, Nicola Walker has starred in series including Spooks, Unforgotten, and Last Tango in Halifax. She won an Olivier Award in 2013 for her role in the play The Curious Incident of the Dog in the Night-Time. To Doctor Who fans, however, she is Liv Chenka, a hardy MedTech, who met the Seventh Doctor in 2011 story Robophobia, and returned in 2014’s Dark Eyes 2 to become a long-standing companion of the Eighth Doctor.