She has received critical praise for her turn as Marlene Dietrich in the Donmar production of Piaf, which led to an Olivier nomination in 2009.
Katherine played the character of Helena, opposite David Walliams and Sheridan Smith in the Michael Grandage Company's production of A Midsummer Night's Dream, the classic Shakespearean comedy.
On 1 November 2013, it was announced Katherine would play the role of Christine Colgate in the West End production of Dirty Rotten Scoundrels.
[2] In addition to her stage work, Katherine has also worked for BBC and ITV in various TV projects including, The Bill and Casualty, Bad Education, Uncle Series 2, and the Michael Grandage film, Genius, starring Jude Law, Colin Firth, Nicole Kidman and Laura Linney.
She was also the female announcer for the Battlefield One video game [3] In 2016, she appeared in "Hated in the Nation", an episode of the anthology series Black Mirror.