She is best known for her television roles as Rochelle on One Night and Ashley in Murdered by My Boyfriend. Her performance in the latter won her the British Academy Television Award for Best Actress in 2015.
Campbell starred in the Sky 1 comedy drama After Hours as Jasmine. She had a lead role in TV-Mini Series Tripped, and a support role in the BBC drama One of Us. In 2017 she appeared in the ITV drama series Broadchurch as DC Katie Harford. Georgina can next be seen playing the role of Lyta Zod on the Syfy series Krypton, and can currently be seen playing the role of Amy on the Netflix series Black Mirror.