•
Edward Bluemel as
Richter Belmont, a descendant of Trevor Belmont and Sypha Belnades and the current wielder of the legendary "Vampire Killer" whip. His Speaker powers inherited from Sypha are mentally blocked by his childhood trauma. • Benjamin Plessala voices Richter Belmont as a child. •
Thuso Mbedu as Annette, a former slave from the
French Caribbean with the ability to perform the
Vodou magic of an African
earth god. •
Pixie Davies as
Maria Renard, a young aristocrat-turned-revolutionary during the
French Revolution, Richter's adoptive sister, and a Speaker who can summon animal spirits to aid her. •
Richard Dormer as Emmanuel / The Abbot, a clergyman of the
Order of Saint John and a Devil Forgemaster who works to maintain the Church's power. • Sydney James Harcourt as Edouard, an opera singer and Annette's closest friend, who aided her in a slave uprising before journeying together to France. •
Nastassja Kinski as Tera Renard, a Speaker magician, Maria's mother, and Richter's adoptive mother. •
Zahn McClarnon as Olrox, an ancient
Aztec vampire from the
New World and an adversary of the Belmont clan. He travels to France to witness the rise of the "Vampire Messiah". • Aaron Neil as Mizrak, a knight serving under the Abbot with an unshakable faith in God, and Olrox's lover. •
Sophie Skelton as Julia Belmont (season 1), a skilled vampire huntress and Richter's mother. •
Elarica Johnson as Drolta Tzuentes, an ancient vampire and a devoted follower of the Egyptian goddess
Sekhmet who prepares the vampire aristocracy for Erzsebet's arrival. •
Franka Potente as
Erzsebet Báthory, the self-declared "Vampire
Messiah" who is drawn to France by the ongoing revolution and claims to be the reincarnation of Sekhmet. •
Sharon D. Clarke as
Cécile Fatiman, a resistance leader and
mambo from the French Caribbean and Annette's spiritual mentor. •
Iain Glen as
Juste Belmont, Julia's father, Richter's grandfather, and a former vampire hunter once famously gifted in magic. •
James Callis as
Adrian "Alucard" Țepeș, the
dhampir son of
Dracula and Lisa Țepeș, who previously fought alongside Trevor Belmont and Sypha Belnades three centuries prior. Callis reprises his role from
Castlevania and is credited as "Special Guest Star" for all appearances. ==Episodes==