Christopher Eccleston appears in the first season as a guest star, after quitting Doctor Who so as not to be type cast he enters a role not dissimilar to that of The Doctor. Christopher also joins the cast as a main character in the second season.
"Season Two spoilers Expect lots of Samurai Hiro, expect Christopher Eccleston to return and, for some reason, Eric Morecambe seems to have joined the cast. Well, that's what it looked like to me."
