ite ▁Fem ale ▁TV ▁Char acters , ▁placing ▁her ▁at ▁No . ▁ 2 . ▁ ▁Matt ▁Mit ov ich ▁of ▁TV ▁Guide ▁noted ▁that ▁Rob b ins ▁" quick ly ▁established ▁herself ▁as ▁a ▁fan ▁favorite ", ▁describing ▁her ▁as : ▁" a ▁breath ▁of ▁fresh ▁air ▁in ▁the ▁often ▁ang sty ▁h alls ▁of ▁Seattle ▁Grace ." ▁Chris ▁Mon f ette ▁for ▁I GN ▁has ▁opinion ated ▁that ▁the ▁fifth ▁season ▁of ▁Grey ' s ▁An atom y ▁was ▁an ▁improvement ▁on ▁the ▁previous ▁two ▁seasons , ▁att rib uting ▁this ▁in ▁part ▁to ▁the ▁introduction ▁of ▁" f resh , ▁new ▁characters " ▁Rob b ins ▁and ▁O wen ▁H unt ▁( Ke vin ▁McK idd ). ▁Mon f ette ▁wrote ▁that ▁Arizona ' s ▁ult imate ▁contribution ▁to ▁the ▁season ▁was ▁" int rodu cing ▁the ▁element ▁of ▁child care ▁to ▁Seattle ▁Grace ", ▁which ▁in ▁turn ▁gave ▁Mir anda ▁Ba iley ▁( Ch andra ▁Wilson ) ▁" a ▁great ▁arc ". ▁Jenn ifer ▁God win ▁for ▁E ! ▁Online ▁approved ▁of ▁Arizona ' s ▁season ▁six ▁promotion ▁to ▁a ▁series ▁regular , ▁particularly ▁as ▁it ▁meant ▁the ▁continu ation ▁of ▁her ▁relationship ▁with ▁Call ie . ▁ ▁The ▁Los ▁Angeles ▁Times ▁Car ina ▁Mac K en zie ▁wrote ▁of ▁the ▁sixth - season ▁episode ▁" In vas ion ": ▁ ▁References ▁Specific ▁ ▁General ▁ ▁External ▁links ▁ ▁Grey ' s ▁An atom y ▁at ▁ABC . com ▁ ▁Category : G rey ' s ▁An atom y