▁about ▁a ▁contract ▁killing . ▁Her ▁un success ful ▁effort ▁to ▁prevent ▁the ▁killing ▁creates ▁a ▁series - long ▁invol vement ▁with ▁the ▁k iller , ▁J avier , ▁to ▁the ▁point ▁of ▁a ▁personal ▁relationship ▁and ▁participation ▁in ▁subsequent ▁" h its ". ▁ ▁Cast ▁ ▁Main ▁cast ▁ ▁Mich elle ▁D ock ery ▁as ▁Let icia ▁' Let ty ' ▁R aines ▁ ▁Juan ▁Diego ▁B otto ▁as ▁J avier ▁Pere ira ▁ ▁L us ia ▁Str us ▁as ▁Est elle ▁R aines , ▁Let ty ' s ▁mother ▁ ▁Terry ▁Kin ney ▁as ▁Christian ▁Wood hill , ▁Let ty ' s ▁par ole ▁officer ▁ ▁N yles ▁Julian ▁Ste ele ▁as ▁Jacob ▁R aines , ▁Let ty ' s ▁son ▁ ▁Jo ey ▁K ern ▁as ▁Rob ▁Mc Dan iels , ▁Est elle ' s ▁husband , ▁a ▁high ▁school ▁acquaint ance ▁of ▁Let ty ' s ▁( season ▁ 2 ; ▁rec urr ing ▁season ▁ 1 ) ▁ ▁Rec urr ing ▁cast ▁ ▁Ann ▁Dow d ▁as ▁Rh onda ▁Las he ver , ▁a ▁t ena cious ▁F BI ▁agent ▁determined ▁to ▁catch ▁J avier ▁ ▁María ▁B otto ▁as ▁A va , ▁J avier ' s ▁sister ▁ ▁Tod d ▁Williams ▁as ▁Se an , ▁Let ty ' s ▁ex - boy friend ▁who ▁is ▁Jacob ' s ▁father ▁ ▁G ide on ▁Em ery ▁as ▁Sil k , ▁A va ' s ▁ex - hus band , ▁a ▁mort u ary ▁worker ▁who ▁dis poses ▁of