y ▁as ▁Mil ady ▁de ▁Winter , ▁Ryan ▁G age ▁as ▁King ▁Louis ▁XIII ▁and ▁Alex andra ▁Dow ling ▁as ▁Queen ▁Anne . ▁It ▁also ▁features ▁Peter ▁Cap ald i ▁as ▁Card inal ▁Rich el ieu ▁in ▁the ▁first ▁series , ▁Marc ▁Warren ▁as ▁Com te ▁de ▁Ro che fort ▁in ▁the ▁second ▁series , ▁and ▁Ru pert ▁Ever ett ▁as ▁the ▁Mar quis ▁de ▁Fer on ▁for ▁the ▁final ▁series . ▁ ▁Jess ica ▁Pope ▁and ▁Ad rian ▁H od ges ▁produce ▁the ▁show ▁for ▁the ▁BBC . ▁The ▁programme ▁was ▁largely ▁fil med ▁in ▁the ▁Czech ▁Republic . ▁In ▁February ▁ 2 0 1 5 , ▁it ▁was ▁announced ▁that ▁the ▁show ▁had ▁been ▁renew ed ▁for ▁a ▁third ▁series , ▁which ▁was ▁announced ▁in ▁April ▁ 2 0 1 6 ▁to ▁be ▁the ▁last . ▁The ▁third ▁series ▁premier ed ▁in ▁multiple ▁countries ▁first , ▁before ▁premier ing ▁in ▁the ▁UK ▁on ▁ 2 8 ▁May ▁ 2 0 1 6 , ▁and ▁con cluding ▁on ▁ 1 ▁August ▁ 2 0 1 6 . ▁ ▁Plot ▁In ▁ 1 6 3 0 s ▁Paris , ▁Ath os , ▁Ar am is ▁and ▁P orth os ▁are ▁a ▁group ▁of ▁highly ▁trained ▁mus k ete ers ▁commanded ▁by ▁Captain ▁Tre ville ▁who ▁meet ▁d ' Ar tag nan , ▁a ▁skill ful ▁farm ▁boy ▁with ▁hopes ▁of ▁becoming ▁a ▁mus k ete er . ▁The ▁series ▁follows ▁them ▁as ▁they ▁fight ▁to ▁protect ▁King ▁and ▁country . ▁ ▁Cast ▁