New cast members;
Adjoa Andoh (Bridgerton, Silent Witness) in the role of Nenneke. In the books, she's a priestess of Melitele, and the head of the Temple of Melitele.
Cassie Clare (Brave New World, The Bisexual) in the role of Phillippa Eilhart. She's an advisor to Redania’s King Vizimir II and leader of the Lodge of Sorceresses.
Liz Carr (Silent Witness, Devs) in the role of Fenn. Fenn was a partner in a law firm and detective agency in Dorian.
Simon Callow (A Room with A View, Four Weddings and a Funeral) in the role of Codringher. Fenn's partner.
Graham McTavish (Outlander, The Hobbit) in the role of Dijkstra. He was a master spy and head of special forces for the kingdom of Redania.
Kevin Doyle (Downton Abbey, Happy Valley) in the role of Ba’lian. Another casting that was previously reported on fan sites and being confirmed for the first time. This is apparently a new character.
Chris Fulton (Bridgerton, Outlaw King) in the role of Rience. A a mage who was instructed to find Ciri after she disappeared during the slaughter of Cintra.