It stars Tom Burke as Athos, Santiago Cabrera as Aramis, Howard Charles as Porthos, Luke Pasqualino as d'Artagnan, Tamla Kari as Constance, and Peter Capaldi as Cardinal Richelieu in the first series and Marc Warren (Comte de Rochefort) in the second series.
It stars Tom Burke as Athos, Santiago Cabrera as Aramis, Howard Charles as Porthos, Luke Pasqualino as d'Artagnan, with Tamla Kari as Constance, Maimie McCoy as Milady and Alexandra Dowling as the Queen. It also features Peter Capaldi as Cardinal Richelieu in the first series and Marc Warren (Comte de Rochefort) in the second series.