Christopher Eccleston is an English actor whose work has encompassed Hollywood blockbusters and arthouse films, television dramas, Shakespearean stage performances and science fiction, most notably the ninth incarnation of the Doctor in the BBC series Doctor Who (2005). He starred as Matt Jamison in The Leftovers (2014–2017), and has frequently collaborated with filmmakers Danny Boyle and Michael Winterbottom.

Doctor Who is a British science fiction television series broadcast by the BBC since 1963. The series, created by Sydney Newman, C. E. Webber and Donald Wilson, depicts the adventures of an extraterrestrial being called the Doctor, part of a humanoid species called Time Lords. The Doctor travels in the universe and in time using a time travelling spaceship called the TARDIS, which externally appears as a British police box. While travelling, the Doctor works to save lives and liberate oppressed peoples by combating foes. The Doctor often travels with companions.