baɪ ðə tˈaɪm fˈɪɹ ɪtsˈɛlf wʌz ɹᵻlˈiːst, kɹˈɪstəfɚɹ ˈɛkəlstən ænd dˈeɪvɪd tˈɛnənt hæd mˌeɪd ðɛɹ deɪbjˈuːs æz ðə nˈaɪnθ ænd tˈɛnθ ɪŋkɑːɹnˈeɪʃənz ʌvðə dˈɑːktɚ, ðˈʌs mˌeɪkɪŋ ðɪ ˈeɪtθ ˈeɪ "pˈæst dˈɑːktɚ".
By the time Fear Itself was released, Christopher Eccleston and David Tennant had made their debuts as the Ninth and Tenth incarnations of the Doctor, thus making the Eighth a "Past Doctor".