▁Clara ▁O sw ald . ▁Also ▁playing ▁a ▁major ▁rec urr ing ▁role ▁in ▁the ▁series ▁is ▁Samuel ▁Anderson ▁as ▁D anny ▁P ink , ▁Clara ' s ▁boy friend . ▁The ▁main ▁story ▁arc ▁revol ves ▁around ▁a ▁myster ious ▁woman ▁called ▁Miss y ▁( port rayed ▁by ▁Mich elle ▁G ome z ), ▁who ▁is ▁often ▁seen ▁wel coming ▁people ▁who ▁have ▁died ▁throughout ▁the ▁series ▁to ▁the ▁" Prom ised ▁Land ", ▁a ▁place ▁that ▁serves ▁as ▁an ▁apparent ▁after life ▁to ▁dece ased ▁characters . ▁Miss y ' s ▁true ▁identity ▁is ▁later ▁revealed ▁to ▁be ▁the ▁Doctor ' s ▁arch - en emy , ▁the ▁Master , ▁who ▁has ▁h atch ed ▁a ▁plan ▁using ▁the ▁help ▁of ▁the ▁Cy ber men ▁and ▁through ▁manip ulation ▁of ▁the ▁Doctor ▁and ▁Clara ' s ▁relationship . ▁ ▁Steven ▁M off at ▁was ▁directly ▁involved ▁with ▁the ▁writing ▁of ▁seven ▁episodes , ▁with ▁sole ▁credit ▁going ▁to ▁him ▁on ▁four , ▁and ▁the ▁other ▁three ▁where ▁he ▁was ▁cred ited ▁as ▁a ▁" co - writer ". ▁Other ▁writers ▁who ▁worked ▁on ▁this ▁series ▁included ▁Phil ▁Ford , ▁Mark ▁G at iss , ▁Stephen ▁Thompson , ▁G are th ▁Roberts , ▁Peter ▁Har ness , ▁Jam ie ▁Math ies on ▁( who ▁wrote ▁two ), ▁and ▁novel ist ▁Frank ▁C ott rell - Bo y ce . ▁Direct ors ▁of ▁the ▁series ▁included ▁ones ▁who ▁had ▁previously ▁worked ▁with ▁M off at ▁on ▁the ▁show , ▁and ▁brand ▁new ▁ones