Christine Finn (c. 1929 – 5 December 2007; Guildford, Surrey) was an English actress, known primarily for her voice work for the 1950s TV serial Quatermass and the Pit, and, after that, the 1960s Thunderbirds television series. She also performed in film, radio and theatre in a career that started in the 1940s and lasted until the mid-1970s.