Tuhia he haere tonu mo tenei waahanga - Heoi, ko te raupapa kua whakaatuhia nga rereketanga ki tenei ture i roto i te mahi a te rangatira o te wa, te rangatira. Ka kitea te Kaiwhakaako i a ia ano i te mutunga o tana huringa whakahou i roto i "Te Kaitiaki o Traken" (1981), ka mau ia ki te tinana o tetahi atu tangata kia ora tonu, ahakoa i whakamahia e ia te Puna o Traken ki te here i tona hinengaro ki te tinana. I roto i te "The Five Doctors" (1983), ka whakawhiwhia te Kaiwhakaako ki te huringa hou o nga whakahoutanga e te Kaunihera Nui o nga Ariki o te Waa hei utu mo tana awhina. I roto i te kiriata pouaka whakaata 1996, ka noho te Kaiwhakaako mo te wa poto ki te tinana o te tangata, ka ngana ki te tango i nga whakahoutanga o te Takuta. I roto i te "The Sound of Drums" (2007), ka whakaatuhia te Kaiwhakaako kua whakawhiwhia ki a ia he tinana hou e nga Ariki o te Wa i te wa o te Pakanga o te Wa
He aha? I roto i tēnei tinana hou, ka puta he huringa whakahoutanga hou a te Kaiwhakaako. Ka whakahoutia te Kaiwhakaako i roto i te "Utopia" (2007) me te "The Doctor Falls" (2017) me te korerorero i te waahanga whakamutunga e kii ana he iti rawa te whakahoutanga.