▁limited ▁budget , ▁incoming ▁producer ▁( and ▁former ▁production ▁unit ▁manager ) ▁John ▁Nathan - Turn er ▁asked ▁Hudson ▁to ▁be ▁sole ▁cost ume ▁designer ▁for ▁the ▁show ' s ▁eigh teenth ▁season . ▁While ▁she ▁was ▁happy ▁to ▁accept , ▁the ▁BBC ▁cost ume ▁department ▁felt ▁that ▁the ▁schedule ▁and ▁dem ands ▁of ▁Doctor ▁Who ▁made ▁sole ▁ste ward ship ▁of ▁design ▁an ▁excess ive ▁bur den , ▁and ▁Hudson ▁was ▁therefore ▁asked ▁to ▁nomin ate ▁a ▁second ▁designer ▁to ▁work ▁with ▁her ; ▁she ▁chose ▁Amy ▁Roberts , ▁whose ▁style , ▁though ▁strongly ▁id ios ync r atic , ▁was ▁comm ens ur ate ▁with ▁Hudson ' s ▁in ▁its ▁bold ness ▁and ▁fant ast ical ▁sens ibility . ▁Among ▁Hudson ' s ▁best ▁remembered ▁designs ▁on ▁Doctor ▁Who ▁are ▁her ▁cost umes ▁for ▁the ▁main ▁characters . ▁In ▁both ▁her ▁first ▁two ▁years ▁on ▁the ▁show , ▁she ▁was ▁responsible ▁for ▁establish ing ▁a ▁s art orial ▁style ▁for ▁the ▁Doctor ' s ▁new ▁companion ▁-- ▁Mary ▁T amm ▁as ▁the ▁Time ▁Lady ▁Rom ana ▁in ▁ 1 9 7 8 ▁( The ▁Rib os ▁Operation ) ▁and ▁L alla ▁Ward ▁as ▁Rom ana ' s ▁second ▁inc arn ation ▁in ▁ 1 9 7 9 . ▁Hudson ' s ▁collaboration ▁with ▁Ward ▁was ▁particularly ▁fruit ful : ▁the ▁designer ▁created ▁more ▁than ▁half ▁of ▁the ▁out f its ▁Ward ▁wore ▁for ▁the ▁role , ▁establish ing ▁a ▁play ful , ▁tom boy ish ▁style ▁for ▁the ▁second ▁Rom ana