Nicola Walker
- 15 May 1970
- English actress
- She undertook acting classes from the age of 12 in order to speak to boys
- She has worked in TV, theatre, radio and film
- Known for her TV roles as Ruth Evershed in the spy drama Spooks and DCI Cassie Stuart in Unforgotten
- She has appeared in guest roles in episodes of Dalziel and Pascoe, Jonathan Creek, and Pie in the Sky
- She won the 2013 Olivier Award for the play The Curious Incident of the Dog in the Night-Time
- She was one half of the folk duo in Four Weddings and a Funeral, who sing “Can’t Smile Without You” during the first church service and “Stand By Your Man” at the reception