R ., ▁so ▁they ▁share ▁a ▁silent ▁good bye ▁through ▁the ▁gallery ' s ▁glass ▁without ▁ex ch anging ▁a ▁word ▁with ▁their ▁eyes ▁and ▁imper cept ible ▁nod s ▁saying ▁everything ▁that ▁was ▁left ▁un sa id . ▁Mer ed ith ▁starts ▁fighting ▁with ▁D erek ▁when ▁she ▁ad am antly ▁states ▁that ▁she ' s ▁not ▁going ▁to ▁Washington , ▁D . C . ▁because ▁Crist ina ▁makes ▁her ▁realize ▁her ▁life ▁is ▁in ▁Seattle ▁and ▁she ▁is ▁just ▁as ▁important ▁in ▁the ▁relationship ▁as ▁D erek ▁is . ▁The ▁new ▁head ▁of ▁card io , ▁Dr . ▁Mag gie ▁Pier ce ▁( K elly ▁Mc Cre ary ) ▁tells ▁Dr . ▁Web ber ▁that ▁her ▁birth ▁mother ▁is ▁Dr . ▁Ell is ▁Grey , ▁and ▁asks ▁if ▁he ▁knows ▁her . ▁ ▁Cast ▁ ▁Main ▁cast ▁ ▁Ellen ▁Pom pe o ▁as ▁Dr . ▁Mer ed ith ▁Grey ▁ ▁Sand ra ▁Oh ▁as ▁Dr . ▁Crist ina ▁Yang ▁ ▁Justin ▁Ch amb ers ▁as ▁Dr . ▁Alex ▁K are v ▁ ▁Ch andra ▁Wilson ▁as ▁Dr . ▁Mir anda ▁Ba iley ▁ ▁James ▁Pick ens ▁Jr . ▁as ▁Dr . ▁Richard ▁Web ber ▁ ▁S ara ▁Ram ire z ▁as ▁Dr . ▁Call ie ▁Tor res ▁ ▁Kevin ▁McK idd ▁as ▁Dr . ▁O wen ▁H unt ▁ ▁Jess ica ▁Cap sh aw ▁as ▁Dr . ▁Arizona ▁Rob b ins ▁ ▁Sarah ▁D rew ▁as ▁Dr . ▁April ▁K ep ner ▁ ▁J esse ▁Williams ▁as ▁Dr . ▁Jackson ▁A